The number of pencils sold varies directly as the cost. if 5 pencils cost $0.45, find the cost of 7 pencils.

If a triangle has the side lengths of 4 in, 5 in, and 6 in. Is it a right triangle?

Simplify the number using the imaginary unit i: (square root) - 28 options: a. 2 (square root) - 7 b. - 2 (square root) - 7 c. i (square root) 28 d. 2i (square root) 28

What is the slope of y=3 (x+2)

Express the area A of a rectangle as a function of the length x if the length of the rectangle is twice its width.

A population of bacteria is introduced into a culture. the number of bacteria P can be modeled by P=500 (1+4t / (50+t^2)) where t is time in hours. Find the rate of change in population when t=2 ... ?

Suppose y varies directly with x write a direct variation equation that relates x and y when y = 6 and x=12 then find the value of y and x=10

A tennis player aces 3 out of every 25 serves. what is the probability that the tennis player will ace the next serve? Write the answer as a decimal or a fraction in simplest form.

How many sides can two distinct congruent angles share

Rick can mop the floor in 5 minutes. Together Rick and Nancy can mop the floor in just 4 minutes. How long would it take Nancy to mop the floor alone?

What are the maximum data rates of 802.11 legacy, 802.11a, 802.11b, and 802.11g?