One of Gemma's 5 friends is going to upgrade to a newer device soon. The average cost of their devices will then increase to $663 from the previous $657. How much more expensive than the older one is this newer device?

The sum of two numbers adds up to 70 and their difference is 26. Write two equations to solve for both values

Y=3x write in form of ax+b

Tim worker estimates his taxable income will be $7000. He is paid twice a month or 24 times a year. Because Tim has only one source of income, he uses the tax tables to estimate how much will be deducted from his pay for withholding

The average mass of a giraffe is approximately 1 * 10^3 kilograms. The average mass of a blue whale is approximately 2 * 10^6 kilograms. About how many times more mass does a blue whale have than a giraffe?

Mark burns 51 calories when he plays volleyball for 15 minutes. At this rate how fast is Mark burning calories?

The volume of a greenhous is 150 feet long, 20 feet wide, 10 feet high at the sides, and the 15 feet high in the center what is the cubic feet?

A family built a house in a beach resort area. In 1990, the house was 430 ft from the water. With erosion, the house was 400 ft from the water in 2000. In what year will the house be only 250 ft from the water? a. 1990 c. 2015 b. 2004 d. 2050

Jorden got 27 out of 90 on his test what fraction of the marks did he get correct

A chemist is using 382 milliliters of a solution of acid and water. If 13.4% of the solution is acid, how many milliliters of acid are there? Round your answer to the nearest tenth.

On a trip to the grand canyon you drove 168 miles in three and a half hours what was your average speed