what is the sum or difference of 10y^10 - 14y^10

Factor the expression. 40z - 20 a) 2z - 1 b) 2 (20z-10) c) 20 (2z-1) d) 20 (2Z-20)

Which of the following is a valid step in the solution of 4sqrt2x+4sqrt (x) + 3=0

At her visit to the doctor, maggie weighed 67.9 pounds. at her next visit, she gained 13.45 pounds. how much does she now weigh?

What annual interest rate must Anika Bartko earn to have $80,000 increase to $90,000 in two years?

The profit p in dollars from selling x calculators is p=25x - (10x+250) how many calculators are sold when the profit is $425

1 1/3 - 3 3/4 1.3 1/4 2.3 4/9 3.5 1/4 4.5

Amount sugar in a candy bar decreased by 6.7% to 3.2 grams how much sugar wascin the candy before the decrease?

Two mechanics worked on a car. The first mechanic charged $85 per hour, andthe second mechanic charged $70 per hour. The mechanics worked for a combinedtotal of 20 hours, and together they charged a total of $1625. How long did each mechanic work?

Which fraction is bigger 1 1/6 or 1 4/12

Five random numbers for mean, median, mode, and range