How is 515,000,000 written in scientific notation

5x + y = 2 4x + y = 4 use the linear combination method to solve

Matt had instructions to take a box of nails to a classroom that has a number equal to the remainder of the division 2960:9. matt took the nails to class room 17. without performing calculations, tell whether matt is correct

2.75j + 2.25 - 1.5j + 3 simplified expressions

The solutiopn to 2 (-4y) + 6y=-3

Three employees each clocked a different number of hours worked this week. Employee Hours of work Total earnings (in dollars) A 15 180 B 20 210 C 35 455Which employee has the highest earnings per hour?

8 and 1 fifth + 3 and 8 fifteenths=

A copy Machine can make 360 copies in 10 minutes. How many copies can it make in 100 minutes?

Each student needs 35 craft sricks for an art project. The art teacher has 7,140 craft sticks. How many students can get craft stick from teacher? What number can i use to estimate the quotient? Explain how to check the answer to a division problem.

Does anyone know f (-3) =

In a fruit punch you mix 150 ml of lemonade with 250 ml of fruit Write the ratio of the volume of lemonade to the volume of fruits Give your ratio in its simplest form.