What is 7 sqrt 8 - 2 sqrt 8?

Answer 1

Mr. Garcia pays $834 for some model cars and model planes. Each model car cost $52. and each model plane cost $14. less than each model car. Mr. Garcia buys 3 more planes than cars. How many model planes does he buy?

Answer 2

Mr. Garcia bought 8 cars at 52 each for a total of 416. He bought 11 planes (3 more planes than cars) at 38 each (52-14) for a total of 418. Add 416 to 418 and there is 834 total.