Why is this answer correct? This is the equation of a circle (x-h)^2 + (y-k)^2=r^2 Where in the solving process does radius=16?​

Plz which expression is equivalent to the expression below?

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?