What is the value of x?
30
45
55
60

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

X2 + y 2 = 36 x + y = 6 solve the system of equations.

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4