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

After surveying students in her homeroom, katie decided to use a number cube to predict the probability that a randomly chosen student in her school planned to stay after school today for extracurricular activities. in katie’s simulation, a roll of 1 represents staying after school, while rolls of 2, 3, 4, 5, or 6 represent leaving school at the end of classes. according to katie’s model, what is the probability that three randomly chosen students will all stay after school for extracurricular activities today?