Can someone help with median and mode​

Given f(t) = 282 - 53 +1, determine the function value f(2). do not include f(z) = in your answer

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?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15