9 stacks of 9 cards because 9x9=81 and that leaves s remainder of 4
If the number that was multiplied by 7 is:
2: 0
3: 7
4: 14
5: 21
6: 28
7: 35
8: 42
9: 49
10: 56
Answer:
b
Step-by-step explanation:
Evaluate using the definition
n
= 
where n ! = n(n - 1)(n - 2)(n - 3)..... × 3 × 2 × 1
Given
9
= 
= 
= 
Cancel 6.5.4.3.2.1 on numerator and denominator, leaving
= 
= 
= 84 → b
Answer:
Step-by-step explanation:
y = (x − 4) (x − 2)
Use the distributive property to multiply x−4 by x−2 and combine like terms.
y = x
^2 − 6x + 8