Question

Tonya went out to a restaurant for lunch. she tipped 12% of her bill, which brought the sum of the lunch bill plus the tip to $28. how much was the original bill?

Answer 1

112% of original=28

percent measn parts out of 100
112%=112/100=1.12

'of' means multiply

112% of original=28 means
1.12 times original=28
divide both sides by 1.12
original=25

original bill was $25