Monica paid tax of $3.20 when she bought a new bike helmet . if the tax rate was 8% .
8 % of x = 3.20
8/100 x X = 3.20
8 x / 100 = 3.20
8x = 3.20 x 100
8 x = 320
Divide both sides by 8
x = $40
1.6m questions
2.0m answers