A) 2x + 4 = 0
b) 3x – 2 = 2x – 3
c) 2(2x – 1) – 3(1 - 2x) = -5 + 10x
d)
e)

4x and 6y

im not sure though

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.