Answer:
read it.
Step-by-step explanation:
a b c easy as 1 2 3
The months that gained income is June, July, and August. The amount of money gained for June is $306.77 the amount gained for July is $301.5 and the amount of money gained for August is $337.88. Hope this helped!!
A group of k elements can be chosen from a group of n elements in

ways.

There are 20 different 3-member groups.
Answer:
#1 AB is equal to AB
Step-by-step explanation:
It's basic A'B' = A'B' you could get confused with the perpendicularity but it's most likely equal :)