Answer:
Your bill is $120.80 .
10% of the total - we have to move the decimal point one space to the left: ...
20% of the total – we need to take the value of 10% and double it: ...
15% of the total – we have to divide the value of 10% by 2 and then add the result to the value of 10%:
Step-by-step explanation:
0=40+3x
0=120x
Calculate the product
0=120x
Swap sides of the equation
120x=0
Divide both sides
X=0
