B . The set of all first elements of the function is the answer
Answer:
2a^2 + 2a - 11
Step-by-step explanation:
(2a^2-5) +(-6+2a)
substitute
The fraction you are looking for is expenses/earnings
So (2500+650+434)/3600
=224/225
If you want to turn this into a percentage just multiply by 100, to give you 99.56%.
To do this we need to find the factors of 60 these are:
1 and 60
2 and 30
3 and 20
4 and 15
5 and 12
6 and 10
There is 1 pair that have a difference of 7 and that is 5 and 12
