Answer:
70
Step-by-step explanation:
four books can be made from eight different books
4 books to be chosen from 8 books
The order does not matters so we use Combination.
four books can be made from eight different books, so we find 8C4
Answer: It should be 825
Step-by-step explanation:
Answer:
6 1/4
Step-by-step explanation:
First find a product of 4 which is the closest to 25, 4 x 6 = 24 then subtract the number from the product you just found, 25 - 24 = 1, so the answer is 6 1/4
Answer: The answer is D
Step-by-step explanation: 12x means 12 times x, which means her age is 12 times her brother's age.