Answer:
A's average speed is 100. I did this same thing and passed my grade.
Answer:
c
Step-by-step explanation:

Thirty seven and twenty five thousandths
Answer:
D. -11/12
Step-by-step explanation:
Call x the distance from home plate to second base.
There is a right triangle formed by homeplate, first base and second base. The sides of this triangle are 80 feet and 80 feet. The hypothenuse meets Pythagoras theorem:
x^2 = 80^2 + 80^2 = 2(80)^2
x = 80√2
Then the answer is the option D.