Which of the following are square roots of the number below? check all that apply.
400
a) 400^1/2
b) 40
c) -20
d) 10
e) 20
f) -400^1/2

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Extra points! find the missing dimension! need asap

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same