Michael picks three different digits from the set { } 12345 and forms a mixed number by placing the digits in the spaces of . The fractional part of the mixed number must be less than 1. (For example, 4 2 3 ). What is the difference between the largest and smallest possible mixed number that can be formed?

The largest number =5 3/4

The smallest number =1 2/5

Required difference = 5 3/4 − 1 2/5 = 4 7/2

I could be very off. hope it helps somehow

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