Use substitution.
anywhere you see "a" , than you would plug in b + 2 in for it so....
(b - (b + 2)^4
now take the negative sign and distribute it "+"
so b - b is 0, than 0 - (-2) is -2.
so what is (-2)^4 ????? it would become positive 16
I solved and the mean is 10
Answer:
your will be A
Step-by-step explanation:
hoped i helped and can i get brainiest pls
Step-by-step explanation:
2t² + 3
2 x 9 + 3
18 + 3
21 is instanous rate
