100 decreased by twice the sum of d and 5

Roberto bought a $170,000 house, paying 22% down, and financing the rest at 5.4% interest for 30 years. Her monthly payments are $744.59. How much will he really pay for her $170,000 house?

How do i find a fraction of a number

I'm not sure about this one: Prove or give a counterexample to the statement: If x and y are irrational then x^y is irrational.

Rodrigo's fish bowl holds 7/8 gallon of water. It is now 1/2 full. How much water is in it? ... I can't tell if it's addition, multiplying, subtraction, ect.

There are 32 marbles in a jar. 12 of the marbles are red, and the rest of the marbles are blue. What is the ratio of red marbles to blue marbles in the jar?

A city which has a population of 250,000 has been experiencing a population decline of 5.5% every year. What will the population be in 9 years?

3 (4b - 2) = - 6 + 12b

Use the net to find the lateral area of the prism 8cm 15cm 17cm 11cm

For each stapler, there are 25 staples. Mr. Henry has s staplers. How many staples does Mr. Henry have?

Is 1/4 greater or less than 8/10