Answer:
28
Step-by-step explanation:
4x7=28
14x2=28
Answer:
16
Step-by-step explanation:
32÷8×4
4×4
16
7(x+3)
= 7x+ 7*3 (distributive property)
= 7x+ 21.
The final answer is 7x+21~
Answer:
13800
Step-by-step explanation:
The order of the members is important (because each selected member will receive a different position), thus we then need to use the definition of permutation.
There are 25 members, of which 3 are selected.

Evaluate the definition of a combination:
