If x + y = 5 and x - y = 3, then x^2 - y^2 = ? A) 9
B) 15
C) 16
D) 25
E) 34
With steps pleaseee

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.