They’ve already played 20 games and there are 40 remaining, so 60 total games.
80 * .625 = 37.5, so they need to win at least 38 games to make the playoffs. So they must win 30 more games. If they do so they’ll have won 38 out of 60. Winning 2 games out of 5 in the playoffs means their total is 40 out of 65. 40/65 = .6153 = 61.5%.
If you factor it then your answer will be -3(-3z-5) if you simplify the answer is 9z+15
Factorize the numerator as a difference of squares:

Then if
, the
factors will cancel:

so the answer is B.
Sqrt=13 is not possible apply phythagoren theorm
a^2+b^2=c^2
(√2)^2+(3)^3=11
or other way is (3)^2- (√2)^2=7