What is the difference of 28y - 16y

Two angles are complementary if the sum of their measures is 90 degrees. If the measure of an angle is 7 x degrees, represent the measure of its complement as an algebraic expression in x.

Write a number in which the digit 2 is one tenth the value of the the digit 2 in 8.524

A cell phone company chargers $60.00 a month for up to 1 gigabyte of data. The cost of additional data is $0.05 per megabyte.

The largest possible circle is cut out of a square whose side length is 8 feet. What will be the approximate area, in square feet, of the remaining board?

Factor 200t + 8t 3 - 80t 2. 8t (t - 5) (t + 5) 8t (t - 5) 2 - 8t (t - 5) (t + 5)

I thought of a number, divided it by 1 1/2, then added 2 1/2 to the result, then multiplied the sum by 1 2/3. then i subtracted 1 2/3 and got the result 2 5/6. what was my number?

Find the lowest common denominator of and

Last week Bill made a purchase of $56.78 before tax. This week, the same items on sale would have cost him $41.90 before tax. If the tax is 4%, how much could Bill have saved by buying the items on sale (including tax) ?

A student is attempting to simplify the express below. Sample mathematical work is shows. which statement best applies to the sample mathematical work?

Which system of equations has infinitely many solutions?