Mary Lou has 2 more nickels than pennies, and she has 30 coins all together. Use x for the number of pennies.

a) 2 (x + 2) = 30

b) x + (x + 2) = 30

c) 2x + 30 = 5

d) x + 2 = 30

Given a set of numbers n = {1,3,4,5,7}. if event a is the drawing of a number less than 4 and event b is the drawing of an even number, what is the probability that either event a or b will occur?

A book of staples contains 4600 staples that are either silver, black or red if 46 percent of the staples are silver and 46 percent are black what percent are red

Absolute value of - 4

Toms weekly salary is increased from 240 to 288. What was the percent of change

Write a word phrase for the expression 3 (w-1) then simplify

You have 3 3 rap songs, 6 6 country songs, and 4 4 rock songs on your MP3 player. You shuffle the songs so they play at random without repeating. What is the probability that the first song will be rap and the second song will be country?

Jessie specializes in organizing parties for various occasions, and in the month of September she plans to organize 8 parties. She has the following breakdown of how much it would cost her to organize each party. Venue: $125 Gifts: $4.

A frequency distribution is a way to describe numerical data categorically true or false?

A collar of Styrofoam is made to insulate a pipe. Find its volume. The large radius R is to the outer rim. The small radius r is to the edge of the insulation. Use pi almost equals 3.14. r = 3 in. R=5 in. h = 15 in.

A truck traveled 341 miles on 15 1/2 gallons of gas. How many miles might we expect the truck to travel on 1 gallon gas?