Solve the proportion.
x-8/5 = 2/4
a) 5/2
b) 9/2
c) 21/2
d) 18

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

A6 ounce bottle of dressing costs $1.56 a 14 ounce bottle costs $3.36 a 20 ounce bottle costs $5.60 which has the lowest cost per ounce