I am having some problems determining if one of these 2 relations is a function, help would be appreciated!

$30 to spend on dinner tax and gratuity at mos restaurant rax is 6% and they give a 15% tip on the total bill after taxes thier dinner cost $21 which statement correctly explains wether andrew and kate have enough money to pay their bill

Which of the following are not congruence theorems for right triangles

Let a and b be real numbers where a not equal to b not equal to 0. which of the following functions could represent the graph below? f(x) = x(x – a)3(x – b)3 f(x) = (x – a)2(x – b)4 f(x) = x(x – a)6(x – b)2 f(x) = (x – a)5(x – b)