Answer:
In step 2, he needed to divide both sides of the equation by 5
Step-by-step explanation:
we have

Solve for a------> That means isolate the variable "a"
step 1
Subtract 2b to both sides


step 2
Divide by 5 both sides


Step-by-step explanation:
interest:

Total=500+30=530
50% chance
Explanation
It’s possible... might might not happen
Angle Y would be 40 degrees
Answer:
undefined
Step-by-step explanation:
The line shown is a vertical line
A vertical line has a slope of undefined