Estimate a 15 tip on a restaurant bill of $24.55

39.55

Step-by-step explanation:

24.99+15=39.55

That is how you get your answer :)

1.89

Step-by-step explanation:

.15 x 24.55=1.89

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

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

you,

mrb

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225