If w is the midpoint of line vx and wx= 7.8, find the length of line vx
a.3.9
b.14.7
c.15.2
d.15.6

Well, to get this, you would have to multiply 7.8 by 2 or add 7.8 to 7.8, the reason you would have to do this is because the midpoint is 1/2 of the line. So 7.8+7.8=15.6.
15.6 (D) is your answer.
Hope this helped!

Ais the correct answer

a - base

b - exponent

so,

the base is 8the exponent is 3the exponent tells you to multiply 8 together three timesthe expanded form is 8*8*8