Answer:
Step-by-step explanation:
Take the pre-sale price.
Divide the original price by 100 and multiply it by 30.
Take this new number away from the original one.
The new number is your discounted value.
The equation of a line is mx+b
Hello there!
What is 25% of 400?

= 
= 100
Thus,
25% of 400 is 100
What is 5% of 20?
Well, we just need to follow the previous steps.

= 
Thus,
5% of 20 is 1
I hope this answer helps. Let me know if you have additional questions about the answer. As always, it is my pleasure helping student like you.
Answer:
CI=P*(1 + R/100)^18
A=(CI + P) = P(1+R/100)^18
13500/P=1(100+R/100)^18
A/P=(100+R/100)^18
A/P=(100+R/100)^18
A=13500$ as (750 * 18)
(13500)/P=(1 +1.15/100)18
(13500)/P=(1+1.15/100)18
13500=((1.0115)^18
P=R$10989.02
Step-by-step explanation:
CI=Compound Interest
A=Amount
P=Principal.