Answer:
Amount of sales tax = $3.51
Step-by-step explanation:
$13.50 x 4 = $54
convert 6.5% to 0.065 ===> 6.5/100 = 0.065
$54 x 0.065 = $3.51
answer is y=-3x+(-1/3)
Infinite number of solutions
For any value of x, both equations are equal to each other because both sides are identical
The answer is 173. Just use the calculator