Basically 3 feet are in a yard and so you have to multiply X amount of yards by 3 to get feet and in this case you will get 120 as your Answer!<span />
I am not sure what you are writing but I know that the correct answer is:
1/3(639)-55
Owen. studied more. Maya studying 0.5 that length means she studied only half of Owen's time. This means Maya studied 45 minutes. 90 is greater than 45.