Mrs. Hernandez bought 18 pens for her class. Highlighters cost $3 each, and gel pens cost $2.50 each. She spent a total of $50. Use a system of equations to find the number of highlighters and gel pens Mrs. Hernandez bought.

How to divide 79.04 by 9.5

Which fraction is bigger 1 1/6 or 1 4/12

Whats the vertex of the graph y=-x^2

A local charity sponsors a 5k race to raise money. it recieves $55.00 per race entry and $10000.00 in donations. but it must spend $15.00 per race entry to cover the cost of the race.

Stacy rowed across the lake with her friend Rainey (in the same boat) at a rate of 3 mph. Rainey then rowed back at a rate of 2 mph. If the lake is 6 miles across, how long did it take them to complete their trip?

A group of seven students were asked how much tv do you watch a day Here are their response 12, 5, 5, 4, 10, 15, 16 Find the mean number of hours for these students. If necessary, round your answer to the nearest tenth.

Determine whether the given description corresponds to an observational study or experiment In a study of 418 students with a particular disease, the subjects were monitored with an EEG while asleep Does the given description correspond to an

Ashley is preparing for a horse riding competition. She has trained her horse for 4 hours and has completed 152 rounds. At what rate has Ashley ridden her horse in rounds per hour

3 (4y+5) using distributive property

Combine like terms to create an equivalent expression. Make sure to simplify coefficients and constants as well. 6 (1/2w - 3/4)