Of means multiply, so it would be 40% x 64
40% is equivalent to 0.40, so you would use the equation
C. 0.40(64) = n
Answer:
2x+20+3x+10 = 180 (int. angles, parallel)
5x+30 = 180
5x=150
x=30
The least possible sum is 6 and 4. If your having problems, write down the factors and choose the pair that adds up the smallest number :)
