To get the GCF we proceed as follow: 9x^2a+9xa^2 factor out 9 we get: 9(x^2a+xa^2) =factoring out x we get 9x(xa+a^2) factoring out a we get 9ax(x+a) therefore the GCF is 9ax
To get the answer we can use proportion 86 --------------45% x ---------------- 100% Now cross multiply x*45%=86*100 45x=8600 /:45 (divide both sides by 45) x=191.11 - its the answer
