Answer:
Check step-by-step explanation
Step-by-step explanation:
A =

to solve for
:
= 
to solve for
:
= 
B.) 37.5.. First you place all the numbers in order from least to greatest. Your mean is 25...and ur upper quartile because the 4 #'s fall even u add 35 and 40 and divide by 2... Which gives u upper quartile of 37.5 and lower quartile of 9. Hope this helps :)
7 and 1/2 mile because 2,640=1.5 miles
4-1.5=2.5+5=7.5
C2+ 10
Twice = multiply by two
10 more than = add ten
Hope this helps!