How are the substitution and elimination methods of solving a system of equations similar

Sara reads 250 words per minute for 2 hours and gets tired and reads 125 words per minute for 3 hours. on average how many words per minute does Sara read?

An angle whose measure is - 120 is in standard position. In which quadrant does the terminal side of the angle fall

Multiply. - 3/7xy (-35x3y2)

What equation is equivalent to y+12=-3 (x-2)

Gary is catering a picnic. there will be 188 guests at the picnic, and he wants each guest to have 12-ounce serving of salad. how much salad should he make?

If one gallon of gas costs $3.50 how much would 3,5, and 7 gallons cost?

to mail a cardboard box, you measure its size and mass. It is 55cm long, 25cm wide and 20 cm high. The mass of the box is 4kg. What is the density of the boxes in grams over cm squared

Select the action you would use to solve x/4 = 16. Then select the property that justifies that action

A company estimates its total profit (profit = total revenue minus total cost) as P (x) = 2x5 - 3x4 - 5x2 - 2, where P is in thousands of dollars and x is the number of years elapsed since the company was founded.

On a number line, the surface of a river is marked at - 225 feet and the top of a building is marked at + 18 feet, where 0 represents sea level.