Question

After a 5% discount, a telephone bill is $79.50. How much was the bill originally?

Answer 1

sorry

Answer 2

same formula as earlier. (discounted bill) = (original bill) - (rate of discount)*(original bill).

Answer 3

setting original bill as a variable, let say "x" (since its unknown).

Answer 4

95%----79.50
100%----x?
now u can use cross multiplication
100%*79.50/95% =83.684