Answer:
the answer is d
Step-by-step explanation:
because the time x(sec) is 10 and all the way down and the height y(ft) is 40 and all the way down also because if you keep mulitplying you get the answer for d like 20 X 5 = 40 and 5 X 2= 10
HOPE THIS HELPS :) :) HAVE A NICE DAY
