Answer this question:Nancy, the librarian, is shelving books from the cart. She shelved 12 history books, 8 romance books, and 4 poetry books from the top section of the cart. Half the books on the bottom section of the cart were mystery books, which she quickly put back into place. Then, she shelved the remaining books from the bottom of the cart, including 5 Western novels and 6 biographies. How many books did she have on the book cart when she started?
Half of the books on the bottom section of the cart are mystery books, which means they are the same as the number of Western novels and biographies put together. So there are 5 + 6 = 11 mystery novels. Add them all together, and there are 12 history + 8 romance + 4 poetry + 11 mystery + 5 Western + 6 biographies = 46 books total.
The answer is 46.

Answer this question:Jackie can do 5 push-ups in 10 seconds. How many push-ups can she do in one minute if she takes two 8-second breaks?
There are 60 seconds per minute, so Jackie's push - up routine takes 1 * 60 = 60 seconds. Her breaks last 2 * 8 = 16 seconds. She does push - ups for 60 - 16 = 44 seconds. She can do a push - up in 10 / 5 = 2 seconds. Therefore, Jackie can do 44 / 2 = 22 push - ups in one minute with breaks.
The answer is 22.

Answer this question:The grocery store sells chips for $2 per packet and corn chips for $1.5 per packet. John would like to buy 15 packets of chips, and with the rest of the money he has left, buy as many packets of corn chips as he can. How many packets of corn chips could John buy if he has $45 for his entire purchase?
John wants to buy 15 packets of chips, which will cost him 15 * 2 = $30. So John would have 45 - 30 = $15 left for the corn chips. John could buy for the rest of the money 15 / 1.5 = 10 packets of corn chips.
The answer is 10.

Answer this question:Darla needs to pay $4/watt of electricity for 300 watts of electricity, plus a $150 late fee. How much does she pay in total?
First find the total cost of the electricity: $4 / watt * 300 watts = $1200. Then add the late fee: $1200 + $150 = $1350.
The answer is 1350.