With the information provided, we can begin with the equation:
y=35x + b
With x = number of hours, y = total cost, b = fixed amount that is charged for residential work
We know that after 6 hours, $270 was charged:
$270 = $35(6) + b
Solve for b:
b = $270 - $210 = $60
The fixed amount that is charged for residential work is $60. So now we can rewrite the equation as:
y = 35x + 60
15. She bought:
3 jeans, $20 each
1 pants, $18
You find the total: 3(20) + 1(18) = $78 then you apply the discount
Since this is between 50-100, you use the 38% discount (decimal form: 0.38)
38% is being subtracted from your total, so you can do this:
100% - 38% = 62% This is your total after the discount
78(0.62) = 48.36 Your answer is C
16. D Income is the $ you make from your job
17. A Budgeting helps you organize and limit your spending and meet financial goals
18. C Liabilities impacts you negatively, since you have debts to pay off
19. A
It is 77.5. Using a calculator is more useful. ☺
The first thing you would do is add all the numbers to get the total budget : $1500
Next you would calculate the present to get : 24.2% or just 24% if your rounding