Answer:
CED = 117
Step-by-step explanation:
21x +21 = 7x +49
21x - 7x = 49 - 21
14x = 28
x = 28/14
x = 2
7x + 49
=7(2) + 49
=14 + 49
=63
180 -63 = 117
CED= 117
Answer: lisa earns 6 dollars per hour
Step-by-step explanation:
45 divided by 7.5 =6
Subtract 12x from 84x = 72x
Answer:
2616x
Step-by-step explanation: