Fast pls I really want the answer now :D

Use the graph of the sine function y=2sinθ shown below

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?

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2