How many solutions does the following system of linear equations have?

y=-6x+6
y=5x+1

It says factor each expression 49x-28?

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13

Find the circumference of a pizza with a diameter of 10 inches round to the nearest tenth