Answer:
2
Step-by-step explanation:
The trick here is to reduce each of the bases to lowest form first
4(5x-20)=-20
20x-80=-20
20x=60
x=3
Step-by-step explanation:
it's like the y in an equation
Answer:
A
Step-by-step explanation:
$170 - $51 = $119 more needed for the purse
she earns $17 per hour so
$119 ÷ $17 = 7
she should tutor 7 hours so h>10
Answer:

Step-by-step explanation:
If we observe the graph carefully there are two on each of the graphs highlighted at x=-2.The functions take the following values at that x.


given the condition

put 
we get . 
