Which expression makes the equation true for all values of ax? 10ax-10=C?
215ax-1)
1/2/20ax-20)
10ax(10-1)
1/5/2ax-2)

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

In a column proof the right column states your reasons

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent