How can I solve the following system of equations: - 4x + y = 6, - 5x - y = 21. I know I can cancel out but I don't know where or where to go from there.

Camryn ran for 13 minutes, walked for 17 minutes, ran for another 13 minutes, and then sat down and stretched in place for 17 minutes. Her total distance traveled is a function of time. Which graph most accurately represents this scenario

The interior angles of a triangle have measures k°, 27°, and 10°. What is the value of k?

Solve the empty gas tank of a truck needs to be completely filled. the tank is shaped like a cylinder that is 3.5 ft long with a diameter of 2.4 ft. suppose gas is poured into the tank at a rate of 1.7 ft3 per minute.

It takes 16 sections of carpet to cover 1 classroom floor. Tyler wants to know how many sections of carpet are needed for 6 classrooms. Olivia wants to know how many sections are needed for 14 classrooms.

6,077,20 in expanded form

A waiter in a restaurant places two rectangular dining tables side by side as shown in the figure. What is the perimeter of the top surface formed by joining the two tables? A. 38.5 feet B. 49 feet C. 42 feet D. 35 feet

Two numbers differ by 30. If 15 is added to the smaller, the result exceeds half the larger number by 7 1/2. What are the numbers

Is the graph of 6x2 - 2y = 7 a line? Explain.

Factors of 48 that add to equal 26

Jill starts to make a cake using the ratio 3:4. She measure her cake mix and only has 2 cups. How much water will she need to add in order to keep the ratio the same?