Answer:
Tax = 3$
Tot Cost = 33$
Step-by-step explanation:
10% of 30$ is 3$
(0.10 * 30 = 3)
the tax is 3$
30$ + 3$ = 33$
the total cost is 33$
Answer:
7767
Step-by-step explanation:
6878
Answer:
B and C
Step-by-step explanation:
- The answer in the attached file
We'll use the notation
for the principal value and
for all the values:

Part I


Part II. In our range we can write


Part III.

Part IV.


Answer:
2x^2-18x
Step-by-step explanation: