Answer:
sqrt d = 10
d = (10)^2
d = 100
Part b
x^2 = 144
x = 12 or -12
Step-by-step explanation:
I think the answer is C, but I don't even understand you're question is. do you want to know the mph they were going? if so then your answer is C
It's either A or B I'm not sure which but it is one of them thats correct sorry if this doesn't help that much