13+3k=11
-Move constant to the right-hand side and change its sign
3k=11-13
Calculate the difference
3k=-2
Divide both sides by 3
K= -2/3
Answer:
y = 80+ 15*x
members = initial membership + growth* months
y = 80+ 15*x
I hour = $8
h hours = $8h
Answer: p = $8h
3 men - 4 days |divide 3
1 man - 4/3 day |multiply 2
2 men - 8/3 day
Two men would build this fence in 8/3 day.