You like to watch movies at the local cinema. You have two payment options. Option A is to buy a discount card which will cost you $ 160, and then $20 per movie. Option B is to pay $40 per movie.
After how many movies will the total costs of the two options be the same? Write a system of equations
in order to solve this problem.

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]