Erika calculated that she would spend $115 on school supplies this year. she actually spent $82.50 on school supplies. what is erika’s percent of error?

What is the inverse of the function f(x) = 2x + 1?

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

Mrs.sling bought a pound of green beans for $1.80. how much will mrs.tennison pay for 3 1/2 pounds of green beans?