How many ways are there to arrange 7 distinct red and 5 distinct blue balls in a row such that:?

1. Describe what happens when a number is added to its opposite. 2. Write an equation that shows a number c being added to its opposite.

Solve the equation. _-24.0 = - 6.0r R = - 18.0 R = 4.0 R = 2.0 R = 18.0 Multiply. 6 (x + 6) X + 36 6x + 6 6x + 36 X + 12 Write a variable expression for the word phrase "the product of a number z and 7". 7 - z 7 : z 7z 7 + z

Your bill at a café is $26.50. You want to leave a 20% tip for your good service. What is the amount of the tip and the total of your final bill?

An ad features a bicycle on sale for $139. If the total cost of the bike is $147.34, what is the sales tax rate?

Basket with 11 pieces of fruit 4 apples, 5 oranges and 2 bananas. What is the probability that girl I will get an orange and girl beat with an apple?

A=1/2h (B+b); A=68, B=8, b=9

20 hours put into degrees?

Bert skies for 1 3/4 hours Friday night, 5 1/3 hours Saturday, and 3 1/6 hours Sunday afternoon. How many hours did he spend skiing that weekend?

Erin loves to play sports! She has earned 3 tennis trophies, 4 basketball trophies, 7 soccer trophies, and 1 volleyball trophy. What is the ratio of Erin's tennis trophies to soccer trophies?

Underneath the skin and layer fat there is a layer of connective tissue before reaching the muscles. What is this connective tissue called?