Given ∠A and ∠B are vertical angles with m∠A=10x+5 and m∠B=15x−10 . What is x?

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If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

Which of the following is a proper fraction? a. 9⁄8 b. 5⁄6 c. 7⁄3 d. 4⁄2

Consider the system: y = 3x + 5 y = ax + b what values for a and b make the system inconsistent? what values for a and b make the system consistent and dependent? explain