Out of 100 emails, 60 are spam and 48 of those contain the word buy. Of the remaining 40 emails that are not spam, only 4 emails contain the word buy. Given that an email is spam, what is the probability that it contains the word buy?

In water, the greater the depth, the higher the pressure. For every 10 m increase in depth, water pressure increases by about 100 kilopascals (kPa). At a depth of 40 m, the pressure is approximately 500 kPa.

What is the slope of a line - 3x + 20y = 40

What quantity is proportional to 54⁄6?

The length of a rectangle is 4 inches more than its width. The area of the rectangle is equal to 5 inches more than 2 times the perimeter. Find the length and width if the rectangle.

A, B, and C are not choice answers, they're small questions. 1. Determine whether the binomial can be written as a difference of two squares. (a) p9 - 25 (b) a8 - 18 (c) g2 - 36

To which power must you raise the expression y 1/5 to get y as the result

What is C = 2πr? Solve for r.

X varies directly as y, and x = 153 when y = 9. Find x when y = 13. A: 106 B: 157 C: 221

How I get a score from a game?

Write each of the following as a mathematical expression. State whether the expression is linear or nonlinear. If it is nonlinear, then explain why. 1. A number decreased by three squared 2. The quotient of two and a number, subtracted from seven 3.