Sunnyvale School was having a picnic. They wanted to make fruit punch. They had 4.5 liters of orange punch. They had twice as much cherry punch as orange punch and 1.5 liters less of apple juice than cherry punch. When they combined all of the fruit juices together, how many liters of fruit punch did they have?
Let's think: Orange = 4.5 L. Cherry = 2 * 4.5 = 9 L. Apple = 9 - 1.5 = 7.5 L. Total punch = 4.5 + 9 + 7.5 = 21 L. They had 21 liters of fruit punch for the picnic.. The answer is: 21.

Paolo has 14 coconuts, while Dante has thrice as many coconuts as Paolo. If Dante sold 10 of his coconuts, how many coconuts did he have left?
Let's think: Dante has 14 x 3 = 42 coconuts. Therefore, Dante was left with 42 - 10 = 32 coconuts after he sold 10 of them.. The answer is: 32.

Albert wants a paintbrush that costs $1.50, a set of paints that costs $4.35, and a wooden easel that costs $12.65. Albert already has $6.50. How much more money does Albert need?
Let's think: The total cost of the paintbrush, the paints, and the wooden easel is $1.50 + $4.35 + $12.65 = $18.50. Albert needs $18.50 − $6.50 = $12 more.. The answer is: 12.

Yella's computer usage last week was 91 hours. If she plans to use the computer 8 hours a day for this week, how much less ​is her computer usage for this week?
Let's think:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Yella can use the computer 8 x 7 = 56 hours for this week. Therefore, Yella's computer usage for this week is 91 - 56 = 35 hours lesser than her computer usage last week.. The answer is: 35.