Melanie sold half of her comic books and then bought 7 more. She now has 18. How many did she begin with?

Find the prime factorization of 2,520

Describe why pi is a real number but NOT a rational number

Which of the following correctly justifies statement 4 of the two-column proof? Lines JK and LM are intersected by transversal JL; the intersection of JK and JL creates angles 2, 4, 3, and 1 clockwise beginning at the top right;

What is the Means-To-MAD ratio if your mean is 5 and your Mad is 5

At orange middle school the 6th-grade student council is selling lollipops as a fundraiser. When their order of lollipops arrived, there were only 360 lollipops. There are 500 students at orange middle school.

A bag of marbles contains 4 green marbles, 3 blue marbles, 2 red marbles, and 5 yellow marbles. How many possible outcomes are there when choosing a marble from the bag

Last month, Korey's Comics had a gross profit of $2,385 with a monthly revenue of $3,465. Korey expects similar sales this month, but he would like to build up his in-store browsing selection, and purchases an additional assortment of comic books

There was a plate of cookies on the table. Amanda was hungry because she hadn't had breakfast, so she ate half the cookies. Then Beth came along and noticed the cookies. She thought they looked good, so she ate a third of what was left on the plate.

If sales tax is 5%, what is the sales tax on an item costing $65?

You pick a card at random. 2 3 4 5 What is P (5) ? 1% 25% 41% 11%