Answer:
5040 ways
Step-by-step explanation:
That is 7 books.
So the number of ways is factorial 7 , written 7!.
= 7*6*5*4*3*2*1
= 5040 ways
Answer:
12
Step-by-step explanation:
3*4 = 12
12/6 = whole number
6/4 is not a whole number
12 is the lowest it could be.
Also those kids have issues.
Answer:
first one has 1 solution, second one have infinity solutions, third one has no solutions and the last one has 1 solution
Step-by-step explanation:
Answer: They have to sell 21 t-shirts to reach their goal.
T-shirt: $5
Goal: $150
$45 has been raised so far (that means they sold 9 T-shirts) 5 x 9 = $45
150/5 = 30 t-shirts (they need to sell 30 t-shirts in the total)
150-45 = They need $105 to archive their goal
105/5 = 21 t-shirts
Answer:
3/28
Step-by-step explanation:
that dot is a multiplication sign, right?