Mr. Vargas is buying used computer equipment. He buys 3 keyboards and 4 mice. He spends $42. If the items are all the same price, how much does each item cost?

What's 5/15 simplified

Last year the Economics Club had 17 members. This year there are 33 members in the club. Estimate the percent change in the number of club members.

How can I find 30% of 2140?

A jogger runs 4 miles on Monday, 5 miles on Tuesday, 3 miles on Wednesday, and 5 miles on Thursday. He doesn't run on Friday. How many miles did he run in all

At the local butcher, 9 pounds of a special sausage costs $51.21. How much does one pound of sausage cost? What concept would you use to solve this problem?

A computer program in Shannon's computer carries a single mathematical operation in 1.5*10^-6 seconds. How much time would the program take to complete 2.5*10^3 mathematical operations?

Becca has saved 25% of the money that she needs to buy a new tennis racket. If she has saved $21 jow much money does the tennis racket cost?

Larry, Moe, and tome at a pizza together. If larry ate 3/8 of the pizza, and tom ate 1/6 of it, how much did moe eat?

Who was the Hellenistic (Greek) mathematician who invented the compound pulley and is known for his work with the laws governing simple machines? A. Pythagoras B. Euclid C. Achimedes D. Hippocrates

Nia is training for a marathon. Her average speed during training so far is 5.8 miles per hour. If she runs at that rate for a training run that is 1 hour and 12 minutes long, how far will Nia run? A. 4.83 miles B. 6.96 miles C. 7.25 miles D. 4.