4n - 9 = - 9 two step equations with integers

Aaron buys 2 t-shirts for $10.50 each, a 3-pack of socks for $7.95, what is the total cost of Aaron's purchases?

What is (15.50/1000) x 52²

Can you solve an equation two different ways and can you explain both methods

Which is a bigger amount. 10%or. 40%

Solve these compound interest problems and round your answer to the nearest 100th. 1) Find the final amount for a $500 investment at 10% interest compounded monthly for 15 years.

How i describe the algebraic expression of n+4

Debbie jones opened a video rental store this your with 400blu rays. she plants to buy 150 new blubrays each year from now on. debbie expect to have 1300 blue rays available during her fifth year in business.

If Nina is N years old now and Maryna is M years old now, write ... Four years ago, Nina was three times as old as Maryna was.

What times what eqals 459?

The length and width of a rectangle are 7 cm and (x-8) cm respectively. Find the value of x if the area with of the rectangle is 42 cm squared.