Solve the system of linear equations in two variables by elimination or substitution.

3x+y=7

-2x-y=9

Jake weighted 150.7 pounds with army boots on, and 144.9 pounds without them. what is the weight of each boot?

5/8 x 6 will be less than or greater than 5/8

Fundraising a charity sent out 700 fundraising letters and received 210 contributions in response. What was the perent of response

Here is a floor plan for a bedroom. Use this floor plan for the next several days

A type of green paint is made by mixing 2 cups of yellow with 3.5 cups of blue. a. Find a mixture that will make the same shade of green but larger amount

Every two days he's trying to spend 1.75 hours observing dolphins and 2.5 hours observing sea lines at this rate how many total hours will the scientist spend a observing dolphins and sea lions in 10 days

An expression is given: x (-1.8-6y) Use the distributive property to expand the expression.

How would you get y by it's self

What property is illustrated by the following statement? If p+3=5, then 5 = p+3

In a parking lot, 1 out of every 8 cars are blue. what percent of the cars in this lot are blue