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in the past 3 years, hannah’s savings account has earned $90 in interest. she initially deposited $600. what simple annual interest rate is the bank paying on this account?

a. 2.7%
b. 3.5%
c. 4.0%
d. 5.0%

Sum of the interior angles of a pentagon

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

Describe how to determine the average rate of change between x = 4 and x = 6 for the function f(x) = 2x^3 + 4. include the average rate of change in your answer.