Use the ! tool to find the # of combinations.
8!/5! = 40,320/120 = 336
Answer:
A(r)=15-3r
Step-by-step explanation:
switch the sign of +3r to make it -3r
P=5 because the parenthesis mean multiplication, and when you multiply 3 times 5, you receive a product of 15. Then, 15-4 is 11, meaning that p=5.
Answer:

Step-by-step explanation:

= 91
*
= 