The first set of expressions bc 3x is equivalent to 3x and -7y is equivalent to -7y
1. x=1, y=3, z=2
2. x=7/5, y= -3/5, z= 0
3. <span>x = -2.5 + -1.5y + z</span>
Answer:
$135
Step-by-step explanation:
6.75 x 5 = 33.75 (to find the amount of money he earned each night)
33.75 x 4 = 135 (amount earned per night by the number of nights worked)
$135 (final answer)
