Valerie earns $24 per hour. Which expression can be used to show how much money she earns in 7 hours?

A: (7+20) + (7+4)

B: (7x20) + (7x4)

C: (7+20) x (7+4)

D: 7x20) x (7x4)

If n represents a number, write an expression for 1/2 of three less than the number

describe a situation in which a formula could be use more easily if it were rearranged, include the formula in your description.

What is 2 4/5 + 2 1/7

A piece of iron weighs 250N in air and 200N in a liquid of density 1000kgm^-3 the volume of the iron is?

The test scores of students in a math class are 56, 42, 50, 63, 58, 41, 50, 48, 68, and 48. What is the mean of this set of data?

What is 3x/2+7=13 i don't know how to salve this problun

Multiply, expressing the product in scientific notation. (9.16X10-3) (5.5X1016)

What is the period of the function f (x) = sin (x/2)

Max has 3 beta fish in his fish tank. One half of his fish are beta fish. How many fish does max have in his tank

You deposit $4200 in a savings account that has a rate of 4%. The interest is compounded quarterly a) How much money will you have after ten years? Round to the nearest cent. b) Find the interest after ten years.