Answer:
18x
Step-by-step explanation:
9 times 2x is 18x.
First we calculate how many ways you can choose four books from a set of eight.
We use the formula n! / [r! * (n-r)!]
8! / [4! * 4!]
= 8*7*6*5 / 4*3*2*1 = 70 ways
Then we have to calculate how many permutations can be made from 4 objects which equals 4*3*2*1 = 24
So, the TOTAL number of ways = 70 * 24 = 1,680
Answer:
Around 1,500 pounds
Step-by-step explanation:
Because you said "estimate," I will be estimating this.
49% rounds up to 50%
3,025 rounds down to 3,000
50% of 3,000 is 1,500 pounds.
Step-by-step explanation:
Below is an attachment containing the solution.
