1. Write the following statements with the factorial symbol.

1) 2 * 4 * 9 * ... * 20

2) 1 * 3 * 5 * ... * 19

2. Prove:

5! + 5 * 5! + 6 * 6! + 7 * 7! + ... + 99 * 99! = 100!

How to factorize a²-21ab-100b²

A waitress works 1.75 hours less in the afternoon than in the evening. If she works 5 1/8hours in the afternoon, how many hours does she work in the evening?

Move the numbers to the blanks to order them from least to greatest value. 0.4 9/8 I-21 1/2 -0.89

A square plaza at a train station has a side length as shown. Which expression represents the area of the plaza in square meters? 2x + 6 O x² + 9 6x + 9 O x2 + 6x + 9

Write an absolute value expression to represent the distance between - 1 and - 6 on a number line. then evaluate the expression.

The meal tax at a restaurant is 5%. What is the tax on a dinner that costs $24?

Ginnie and her friends go out for pizza every Friday after school. The pizza costs p dollars and each soda costs s dollars. They always divide the bill evenly between the number of people. This week there were n number of people.

Jenny writes a story for 60 mind if she starts writing her story at 11:50 Am when will she Finnish writing

What are the factors of the following polynomial: x2-x-56 Do not include any spaces in your answer. Use parentheses to separate your factors. A sample answer might be (x+1) (x-4).

Subtract 28 from 54, and then subtract the difference from 32. Which expression means the same as the words?