My test say the answer is A
R x 9
multiplication problem, r times 9
could also be 9r
I believe that through deductive reasoning angle O is 64 degrees. The reason is it's bigger than angle R so that rules out 32 and 16 degrees, but it's not obtuse, so that rules out 128 degrees, thereby leaving you with 64. Hope this helps :)
15-7 is 8! so 8 is the length of the side with the ?
It’s bull Peter C your welcome :)