Which of the following is the domain of the function g(f((x) = x + 7, g(y) = g(f(x)) = a. all numbers less than or equal to 7 b. all numbers greater than or equal to 7 c. all numbers greater than or equal to -7 d. all numbers less than or equal to -7

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

What is the inverse of the function f(x) = 2x + 1?

If you invest 1,500 today in a bank that gives you a 5 percent annual interest rate, which of these items can you buy in two years? a. electronics worth $1,650 b. fitness equipment worth $1,700 c. a holiday package worth $2,000