I think it’s d. A percent is out of 100 so it’s 156/100
Alright, so we'd use the combinations with repetition formula, so we choose from 4 schools to distribute to and distribute 8 blackboards. It's then
( 8+4-1)!/8!(4-1)!=11!/(3!*8!)=165
For at least one blackboard, we first distribute 1 to each school and then have 4 blackboards left, getting (4+4-1)!/4!(4-1)!=7!/(4!*3!)=35
Answer: it goes up like 10,20,30,40
Step-by-step explanation:
|x| means the absolute value of x and removes any negatives. So |14| = 14 and |-14| = 14 meaning the answer is D.
