1. A person walks 10 m in a time of 4.2 sec 66
2. It takes 40 sec. for a bird to fly 180 m.
120
3. A jogger runs 360 m in 120 sec.
4. A rock climber takes 24 min. to climb 60 m.
5. A ball rolls 60 m in 8.0 sec.
6. Moving at the speed of 80 m/sec., a van is driven for 65 sec.
7. A boat travels for 104 sec. at a speed of 7.4 m/s.
8. At 4.0 m/sec., a bear runs for 4.0 sec.

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

Match the one-to-one functions with their inverse functions.

Aproportional relationship between the number of pounds of carrots (x) and the price in dollars (y) is graphed, and the ordered pair (8, 6) is on the graphed line. part a: what is the price of 1 pound of carrots? show your work. (8 points) part b: what will the ordered pair (16, 12) on the graph represent? explain in words.