Triangle V P M. Angle V is 52 degrees, angle P is 78 degrees, angle M is x degrees. Which equation would help find the measure of ∠M?
x + 52 + 78 = 180
52 + x = 180 + 78
180 + 52 = 78 + x
180 + x = 78 + 52

What is the value of the digit 1 in the number 13?

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Which of the following circles have their centers in the third quadrant?