Answer:
324
Step-by-step explanation:
1 yards = 36 inches
36 x 9 = 324
speed is 45 miles per hour. 135/45=3, so the answer is 3hours (A)
Replace x with 3:
h(3) = (3^2 -4) /2
= (9-4 ) / 2
= 5/2
