12. what percent of 75 is 45? show your work.

Method 1:

45 is 60% of 75.

Method 2:

what percent of 75 is 45

  n     ÷ 100    *   75 = 45

  n                  * = 45

  n              * = 45

 n                              =  

 n                              = 60

60%

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb