Answer:
It's B
Step-by-step explanation:
Answer:
(b) 
Step-by-step explanation:
Given: Cost of car is 
Sales tax is
The license and title charges are 
To find: The amount that the credit union will finance.
Solution:
We have,
Cost of car
Sales tax is
of 
Therefore,
sales tax 
The license and title charges 
Now, the amount that the credit union will finance is
cost of car
sales tax
the license and title charges


Hence, the amount that the credit union will finance is
.
So, (b)
is correct.
Answer:
40
Step-by-step explanation:
Any solution x will mod 23 will also have x+23n as a solution, for some integer n. Since 900/23 = 39 3/23, we know there are 39 or 40 three-digit integers of this form.
As it happens, 100 is the smallest 3-digit solution. So, there are 40 three-digit numbers that are of the form 100 +23n, hence 40 solutions to the equation.
_____
The equation reduces, mod 23, to ...
10x = 11
Its solutions are x = 23n +8.
4 + 2x = 7
2x = 7 - 4 = 3
x = 3/2 = 1.5 inches