Answer: 410526 books
Step-by-step explanation:
Let x equal the total number sold.
x × 0.076 = 31,200
x = 410526 books
Answer:
B. 21
Step-by-step explanation:
The fractions are there to just make the problem seem complicated, but just rewrite it without the fractions.
"What is a common multiple for 7 and 3?"
In this problem it's easy, all you have to do is guess and check.
A: A doesn't work. 7 is not a factor of 18.
B: B works! Both 3 and 7 are factors of 21.
C: C doesn't work. 7 is not a factor of 3.
D: D doesn't work. Neither are a factor of 4.
They only leave us with one solution, B.
6.75%
1 penny = 50% chance of tail
50% x 50% x 50% x 50%= 6.75%
