Work out the value of 2x-2y when x-y=3

Jamie wants to buy a new television that coasts

Calculate the current in a circuit with resistance (r) of 30 and electromotive force (e) of 120vac

If she has 184 pages left to read, how many total pages are olives book

Write the sentence as an equation Then solve; 5 less than one half of a number n is 21

What expression is equivalent to tan x

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.