A length of $$4 yards is equal to $$12 feet. $$10 yards is equal to how many feet?

The answer is 30 yards.

Step-by-step explanation:

12/4=3 so 10x3=30

30 ft

Step-by-step explanation:

4 yards x 3 = 12 ft

so im assuming it the same pattern so 10 x 3 = 30 ft

hope that helps :)

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50