I can't help you with index notation, but i can give you the other part.
80 = 5 X 16 = 5 X
5 and 2 are prime numbers.
I picked five because 80 is not divisible by 3.
1) 4*3 - 9
2) 15 - 12
3) 4 - 1
4) 54 + 1 - 52
5) 9*3+2-26
Hope this helps!
Answer:
Step-by-step explanation:
This is the measure of perimeter. P = 2l + 2w. P = 2(75.4) + 2(50.8) That tells us that we have to buy 252.4 feet of fencing.
Anime club: 500 - 30y
Computer club: 150 + 20x
*you could use any letter(variable) you like*