The water level in a lake has changed by -16.8 feet over the last 2.5 years. what is the average change in the water level each year?
a) -6.72
b) -0.672
c) 0.672
d) 6.72

Ke’ajah has a coupon for 1/3 off the regular price, t, of a tent. which expression represents the price of the tent using the coupon? select the two correct expressions. a. 1/3t b. 2/3t c. t - 1/3 d. t - 2/3 e. t - 1/3t f. t - 2/3t