Solve the system of linear equations by graphing

X+y=7

-x+y=-7

Is the value of the first 7 ten times as great as the value of the second 7 in 7,027

In the xy-plane, line l passes through the origin and is perpendicular to the line with equation 5x-2y-8. what is the equation of line l?

What is the sum of a 6-term geometric series if the first term is 24 and the last term is 1,417,176?

Nick has $7.00. Bagels cost 0.75 each and a small container of cream cheese costs 1.29. Write an inequality to find the number of bagels Nick can buy.

At one gym, there is a $12 start-up fee, and after that each month at the gym costs $20. At another gym, it costs $4 to startup, but after that, each month at the gym costs $22. After how many months will the cost of both gyms be the same?

if a sqaure is 4 times as great as the lenth of any of its sides is it proportional

Screen printing a batch of shirts requires 0.39 minutes per shirt in addition to 5.84 minutes of initial setup time. If it takes 7.4 minutes to screen print a batch of shirts, how many shirts are in a batch

a box of pasta measures 8 in tall 2 1/2 in deep and 6in wide is the pasta fills 3/4 of the Box how many cubic inches does the pasta fill up

Twitter allows companies to reach consumers with

Y=4x, y=x+7, y=-2x+4, y=3x-1 which doesn't belong?