11 students in a room shook hands with each other how many handshackes would ther be altogether

Adriano loves anime and collects toys from his favorite series. each month he gains 4 toys. if adriano has 3 toys when he starts collecting, how many does he have after 4 months

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 – 10x +2?