Wdym? Is there a shape or is it a fraction
Multiply 20 by 37. This is 740. Divide this by 2, this is 370. She will donate $370 to charity
For this problem,we use the Fundamental Counting Principle. You know that there are 7 digits in a number. In this principle, you have to multiply the possible numbers for every digit. If the first number cannot be zero, then there are 9 possible numbers. So, the value for the first digit is 9. The second digit could be any number but less of 1 because it was used in the 1st digit. So, that would be 10 - 1 = 9. The third digit must be the value in the second digit less than 1. That would be 9 - 1 = 8. And so on and so forth. The solution would be:
9×9×8×7×6×5×4 = 544,320 7-digit numbers
8/7-1/3
Make both fractions have the same common denominator
24/21 - 7/21
Subtract the numerators while keeping the denominator the same
Final Answer: C. 17/21
