four friends got take-out from an italian restaurant. they bought a pizza for $15.50, pasta for $16.05, chicken for $20.25, and salad for $8.20, and paid a 10% sales tax. they split the bill evenly. how much did each friend pay?

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt