It is 9*9 21 times so
9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9=
1.09418989e20 is the answer.
Answer:
OK SO IN MULTIPLYING INTEGERS
negative into negative is positive
positive into positive is positive
positive into negative is negative
Step-by-step explanation:
For quarters we have:

Where,
x: number of quarters
Clearing x we have:

For nickels we have:

Where,
y: number of nickels
Clearing y we have:

Then, the ratio of quarters to nickels is:

Simplifying we have:

Answer:
The ratio of quarters to nickels in a dollar is:

Answer:
5x² - 13x + 6
Step-by-step explanation:
8x² - 6x + 2 - (3x² +7x -4)
Simplify the expression:
8x² - 6x + 2 - 3x² -7x + 4
Combine like terms:
5x² - 13x + 6