A deli sells small, medium, and large sack lunches. Each bottle of water costs $1, and each apple costs $1. Each sandwich costs s dollars. Some customers buy sack lunches, and some customers buy items separately. Cathy buys 4 medium sack lunches. These sack lunches do not include water. Her total cost is 4(2s + 3).

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

Consider the linear function that is represented by the equation y= 4x+5

Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.