A check of dorm rooms on a large college campus revealed that 33 %33% had refrigerators, 52 %52% had TVs, and 22 %22% had both a refrigerator and a TV. What's the probability that a randomly selected dorm room has a) a refrigerator but no TV? b) a refrigerator or a TV, but not both? c) neither a refrigerator nor a TV?

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

Kayla has a $500 budget for the school party.she paid $150 for the decorations.food will cost $5.50 per student. what inequality represents the number of students,s, that can attend the party?

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of