I don't know but these can be really difficult
good luck
Find his rate:
120 / 15 = $8 per hour
Multiply the rate by hours:
$8 x 20 hours = $160
He will earn $160
Solution:
we have been asked to find
The expression is equivalent to 
we can simplify the given expression as below

Hence the simplified expression , equaivalent to the given expression is 1/2.
Answer:x= -3 {x=1 tx= -2 {x =1
Step-by-step explanation: