Please show our work I am not good at percentages Kristin got 9 out of 12 questions correct on this test. What was her grade, as a percent?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1