Answer:
b = 40
Step-by-step explanation:
This is because Jim starts with $40 and then makes $20/lawn. The equation can be represented by y = 20x + 40
Hoped this helped! :)
Answer:
7.11 and 9.48
Step-by-step explanation:
.12 is equal to 7.11
with out coupon
.12 is equal to 9.48
with the coupon
For this case we must clear x from the given equation:

We passed 23 subtracting the other side of equality:

By definition,
is written as 
So, we have:

So, the solution of
for x is:

Answer:



$1.49 3ft or $.69 1.5ft
69*2=138
$149 for 3ft or $1.49 1.5ft
options two are better buys