can someone help me with my practice test and give me the answer! I will report if random. Pls and TYYY :))

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2