What is the explicit rule of the sequence?
-182, -175, -168, -161, . . .

A- an=7n−189
B- an=7n−175
C- an=−7n−189
D- an=−7n−175

I think it is either C or D

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation