Answer:9a^2+18a-72
Step-by-step explanation:
9(a+1)^2-81
9(a+1)(a+1)-81
Open brackets
9(a^2+a+a+1)-81
9(a^2+2a+1)-81
9a^2+18a+9-81
9a^2+18a-72
Answer:
11:07 Pacific Time
Step-by-step explanation:
it depends on your time zone :)
Answer:
Your answer is going to be x=4.
Step-by-step explanation:
5x+1=21
-1 -1
(5x)/5=(20)/5
x=4
Answer:
4 1/2 hours
Step-by-step explanation:
Total time worked was ...
2 3/4 + 1 3/4 = (2 +1) + (3/4 +3/4)
= 3 + (1 1/2) = 4 1/2 . . . hours
Answer:
c
Step-by-step explanation:
doesnt define a function
