Well it sounds like a trick question but the answer is simple! If she runs 90 meters per minute, In one minute she will run 90 meters.
Answer 90
0----------5------7======================>
hope this helps
You can make it easier by replacing x^n with another variable, factoring, then putting x^n back in the end.
Using exponent and algebra rules, rewrite x^2n - 2x^n + 1 as
(x^n)^2 - (2 x x^2) + 1
Then, let x^n = m.
m^2 - 2m + 1
Now factor that: (m - 1)^2
And now put x^n back: (x^n - 1)^2
Stokked 120
how many left?
300-120=180
180/300=x%
percent means parts out of 100
180/300=60/100=60%
60% left
13x u add parentheses since two negatives positive
