307:7
7 1/6 and 9 1/9 equivalent fraction
What is 8/11 of 44?
(-5)^9/(-5)^7
(2x+y)(2x+y)
5*(a-1)-(2+1)
4*(a-1)-(2+5)
## 25 squared +15 x 25
2x square + x -53 =0