X would be 0.5. Hope this helped
Answer:
B
Step-by-step explanation:
Becky travels 0.5 miles per hour faster than Emma.
Emma's speed is 7.5 miles per hour. The slope of y = 8x, which is 8, is Becky's speed.
8 − 7.5 = 0.5 miles per hour faster
The estimated lengths are 12in. and 5 in. This would be an estimated difference of 7in.
The estimated difference is going to be higher than the actual difference because in rounding 11.7 to 12, you are losing .30in, but in rounding down 5.25 to 5, you are actually gaining .75in.
The ACTUAL difference is 6.45in
