What is 500,000,000 in scientific notation

Your cellphone plan gives you 500 minutes monthly. If you have used 310 minutes already and there is a week left this month, how should you use your minutes this last week?

Write a problem that has two parts. Then solve it by finding the whole.

Which is the most efficient first step to solve x in the equation 3.7x - 18 = - 4.3x - 34

100ft. Doing the ladder method

Rocco wants to buy an authentic professional football jersey of his favorite player. He has one coupon for 30% off and another coupon for $30.00 off. If the jersey costs $95.

If one-third of a number is added to three-fourths of that same number, the sum is 26. Find the number. Select one: a. 12 b. 4 c. 8 d. 24

O u Didier What is the approximate area of the circle? Use 3.14 for it and round the answer to the nearest tenth. 17.3 in 2 34.5 in? 95.0 in2 379.9 in2

A verbal phrase for 6n-4 is

What comes next simplify 31/50,17/25,37/50,4/5, ...

You can work a maximum of 40 hours a week. You need to make 400$ in order to cover your expenses. Your office job pays 12$ and hour and your babysitting job pays 10$ an hour. Write a system of inequalities to model this situation.