Answer:
2^3×3^2
and yh
Step-by-step explanation:
2×2×2×3×3
4-4=0 is an example of that
J is correct. the scale is balanced, so x = 1. there are 9 1’s on the right, and 6 1’s on the left. there are 3 more blocks, and they would have to each be 1.
(2x-5y)+(x+y)=(2x+x)+(-5y+y)=3x-4y.
therefore:
(2x-5y)+(x+y)=3x-4y
10% of 80 = 8
80 - 8 = 72
if they are 10% off, the contact lenses will cost $72
