Why does math exist at all

You have just been approved for a 30 year 6.0% fixed home mortgage. The monthly payment that you qualify for is $1112.10. Determine the price of a home that can be purchased. Round your answer to the nearest cent. / a. $183,147 c. $185,350 b.

Find the slope of the line that contains (-1, - 6) and (-15, 2).

Describe in words the region x^2+y^2+z^2 >2z

What is what is 858 x 94

589=7 times 84 + n?

What is 1 7/9 - 4/9? Express the answer in simplest form What is? Express the answer in simplest form what is 2 5/12 - (-2 1/6)

2x+5x= I think the answer is - 1 can someone tell me if it's right or not?

If 8a + 7b + c = 9, what is - 6c - 48a - 42b

A1.0 kg cart moving right at 5.0 - - on a frictionless track collides with a second cart moving left at 2.0 m/s. The 1.0 kg cart has a final speed of 4.0 m/s to the left, and the second cart has a final speed of 1.0 m/s to the right.

The formula I = PRT where I = Interest, P = principal, R = rate, and T = time is used to calculate the amount of simple interest earned. Solve for T.