Is the set of real numbers closed under addition?

a 1 = 500, a n = 5a n-1 is the recursiverule for the sequence 500,100,20,4, 4 5, is the statement true or false?

Which shows the ratio 44 to 200 written as a percent a decimal and a fraction in simplest form

Answer any of these questions and get a good rating if you are correct. (Also this is multiplication with fractions) 1. What is the product in simplest form? -8/9⋅5/6 2.

A combination lock uses 4 numbers, each of which can be 0 to 26. if there are no restrictions on the numbers, how many possible combinations are available?

A number that when added to another number equals zero

Patty borrows $12,000 to pay for university tuition. The interest was compounded quarterly with and had a 9.04% interest rate. She made monthly payments of $450. How long would it take Patty to repay the loan?

A recipe that makes 3 dozen of cookies calls for 2/3 cup of sugar. If you have 4 cups of sugar and want to use it all, how many cookies can you make?

Order the fractions from least to greatest, 1/2, 2/3, 1/4, 5/6 simplified

What is 90 ft equal to in cm

If the width and height of a rectangular prism are each shrunk to one seventh of the original size but the length remains the same, what is the formula to find the modified surface area