Please someone help me with my algebra. im trying to get ungrounded before the 4th

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.