What are the first nine prime numbers?

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Solve: 3x+y=6 4x-2y=18 show all work !

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125