Answer this question:Delores has $450. She buys a computer for $400 and a printer for $40. How much money, in dollars, does Delores have left?
The computer and printer cost 400 + 40 = 440 dollars. Delores has 450 - 440 = 10 dollars left.
The answer is 10.

Answer this question:Andy works in the pro shop at a tennis resort, where he earns $9 an hour. In addition to this, he gets paid $15 for each racquet he restrings, $10 for changing out the grommets on a racquet, and $1 for painting a stencil on the racquet strings. How much does he earn (before taxes) during an 8-hour shift if he strings 7 racquets, changes 2 sets of grommets, and paints 5 stencils?
Andy works 8 hours, so he earns a wage of 8 hours * $9 per hour = $72 just for working there. During that time, he restrings 7 racquets, so he earns 7 racquets * $15 per racquet = $105 from stringing. He also changed the grommets in 2 of those racquets, so he earned 2 grommet jobs * $10 per grommet job = $20 from changing grommets. And he stenciled 5 racquets, so he earned 5 stencil jobs * $1 per stencil job = $5 for stenciling. In total, Andy earned $72 + $105 + $20 + 5 = $202 for the day.
The answer is 202.

Answer this question:During the soccer match, The Kickers scored 2 goals in the first period and twice that amount in the second period. The other team, The Spiders, scored half the amount that The Kickers scored in the first period and twice the amount that The Kickers scored in their second period. What is the total amount of goals both teams scored?
The Kickers scored twice as many as 2 goals in the second period, so 2 * 2 = 4 goals. The Spiders scored half as many as The Kickers' 2 goals from the 1st period so .5 * 2 = 1 goal in the first period. The Spiders scored twice as many as The Kickers' 4 goals from the second period, so 2 * 4 = 8 goals in the second period. Together, they scored 2 + 4 + 1 + 8 = 15 goals total.
The answer is 15.

Answer this question:Mr. McNeely takes a register of the total number of students present in class every day. On a particular week, the number of students in the class on the second day was 40 more than the first day. The number of students who didn't turn up for the class on the second day was twice the number of students who didn't turn up on the third day. On the third day, 1/7 of the total number of students of the class called in sick. If the total number of students in the class is 280, calculate the number of absent students in the three days.
On the third day, 1 / 7 * 280 = 40 students called in sick. If the number of students absent on the second day was twice the number on the third day, then 2 * 40 = 80 students didn't show up for the class on the second day. The total number of students present in the class on the second day was 280 - 80 = 200. If 40 fewer students showed up for the class on the first day than on the second day, then 200 - 40 = 160 students showed up for the class on the first day. The number of students absent on the first day is 280 - 160 = 120. In the three days, the total number of absentees is 120 + 80 + 40 = 240.
The answer is 240.