The answer to that is x=8
Answer:
$9
Step-by-step explanation:
The breakfast before tip costs x.
The tip is 20% of x.
The tip is $1.80.
20% × x = 1.80
0.2x = 1.8
x = 1.8/0.2
x = 9
Answer: $9
Reading that as

By the fundamental theorem of calculus, the first derivative is

and so the second derivative would be

which means
Answer: I say B
Step-by-step explanation:
Answer:


Step-by-step explanation:
Given


Required
Determine the inequality
Assume she wants to buy n CDs.
If 1 CD costs $10, then n CDs costs 10n.
So, the inequality is:

<em>We used </em>
<em> because the amount she wants to spend cannot exceed 30</em>
Divide both sides by 10, to solve for n
