Step-by-step explanation:
hope this helped you :)) !!
Answer:
(7, ∞)
Because x does not equal 7 as well, brackets won't be used here.
Because x can be any number greater than 7, this means the domain includes positive ∞.
2.4
Answer: x=26
I don't get the "number of 40" part, but here's my best shot!
3(40x)-5
