The function h(t) = -2 (t-3)²+23 represents the height, in feet, t seconds after a volleyball is served. Which of the following statements are correct? Select all that apply.

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

Find the cosine function that is represented in the graph.

How do you determine if an ordered pair is a solution to a given equation?