Which set of ordered pairs belongs to a linear function?
a) (-5, ,, - 8), (7, -20)
b) (5, 16), (1, -, -, -20)
c) (-4,,4), (2, - 8), (6, -20)
d) (5, -16), (1, - , 8), (-7,-20)

Find the value of the variable and the length of each secant segment.

How many revolutions will a car wheel of diameter 28 in. make over a period of half an hour if the car is traveling at 60 mi/hr? the final answer is supposedly 21,609 but i have no idea how to get that, show work : )

What is the least common multiple of 8, 12, 7