Bethany needs to solve the equation -x^2+4x=x-4. What system of equations could she write to help her solve for x? Name the solution for her system.

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).

What is the value of x? enter your answer in the box.

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?