Answer:
6 nonfiction books
Step-by-step explanation:
if it's fiction to non 9:6
if it's non to fiction 6:9
(you may need to simplify)
Answer:
7.00+2.50x>48.00
Step-by-step explanation:
He cant spend more than 48.00 so he'll have to spend less than or equal to 48.00
Answer:

Step-by-step explanation:
Given

Required
Solve using distributive property

can be rewritten as 
So:

Factorize:

Now, we can apply distributive property on the expression;

Hence, the above is an equivalent expression.
Solving further, we have


Answer:
Below in bold.
Step-by-step explanation:
No repetition.
There are a total of 7 numbers.
For the number to be even it must end in 0, 2 or 8.
The other 3 numbers will be the number of permutations of 3 from the 6 other numbers.
Number of 4 digit numbers ending in 0
= 6P3 = 6! / 6-3!
= 120.
Now the number could also end in 2 or 8,
so there are 3*120 = 360 4-digit even numbers (no repetition).
With repetition.
There are 3 * 7^3 = 1029 with repetition.
Subtract 18 and 5 hope it helps :)