X+y=-10

X-Y=2

If x+y=-10 and x-y=2, what is the value of x?

How can I make "24" using numbers "4 4 8 1" as options?

Macy's final grades are a A, B, C, D, D, D, F, all are weighed the same, what would her final grade be?

Solve the riddle: I am a number that is a multiple of 5. When you add 3 to me I can be divided by 7. I am between 14 and 32.

Destiny paid $6.60 for a dozen cupcakes for a birthday patry. What is the unit cost for each cupcake?

A t shirt maker wants to open his first store. If he chooses the store on Main Street he will pay 650 in rent and will charge 32$ per t shirt if he chooses the store on broad street he will pay 440 in rent and will charge 26$ per t shirt.

A car travled 200 miles in 4 hours. What was the car average rate of speed in miles per hour?

What is 100 times 7 divided by 12 multiplied by 16000 subtract 12368 divided by 2 and multiplied by 67?

Philip dead 14 sit-ups on Monday 21 sit-ups on Tuesday and 28 sit-ups on Wednesday if the pattern continues how many sit-ups will he do on Friday

At noon on the moon the at noon on the moon the temperature was 235 degrees by midnight the temperature had dropped 485 degrees what was the temperature on the Moon at midnight

The scale of a model train is 1 inch to 14 feet. One of the cars of the model train is 5 inches long. What is the length, in feet, of the actual train car.