Answer this question:Ernie's income is 4/5 of what it used to be and Jack's income is now twice what Ernie used to make. How much do they earn combined if Ernie used to make $6000?
If Ernie's income is 4 / 5 of what it used to be, she is earning 4 / 5 * $6000 = $4800 now. Jack's income is now twice what Ernie used to make a total of 2 * $6000 = $12000. Combined, Ernie and Jack are making $12000 + $4800 = $16800.
The answer is 16800.

Answer this question:Roman and Remy took separate showers. Remy used 1 more gallon than 3 times the number of gallons that Roman used for his shower. Together the boys used 33 gallons of water. How many gallons did Remy use?
Let R = Roman's gallons. Remy = 3R + 1. 4R + 1 = 33. 4R = 32. R = 8. Remy used 25 gallons of water for his shower.
The answer is 25.

Answer this question:John is twice as old as Mary and half as old as Tonya. If Tanya is 60, what is their average age?
John is 30 because 60 / 2 = 30. Mary is fifteen because 30 / 2 = 15. Their total age is 105 because 60 + 30 + 15 = 105. Their average age is 35 because 105 / 3 = 35.
The answer is 35.

Answer this question:John gets a new EpiPen every 6 months. They cost $500 and insurance covers 75%. How much does he pay per year?
He needs to buy 12 / 6 = 2 per year. Insurance covers 500 * .75 = $375. So he pays 500 - 375 = $125. So he pays 125 * 2 = $250.
The answer is 250.