a hot air balloon is drifting at an altitude on
on is drifting at an altitude of 2550 ft. the balloon needs to descend to an altitude of
0 it. how many feet must the balloon descend?

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?

Describe how you can act financially responsible.

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )