5*5-10=15 I hope this helps you
Answer:
Therefore, the exact value of Tan 60 degrees is √3. We can also derive the values of tan 0°, 30°, 45°, 90°, 180°, 270° and 360° in the same way
Cost Price = $60
Markup = 25% x $60 = 0.25 x 60 = $15
Sales Price after markup = $60 + $15 = $75
Discount = 20% x $75 = 0.2 x 75 = $15
Sales Price after discount = $75 - $15 = $60
Sales Tax = 6% x $60 = 0.06 x 60 = $3.60
Sales Price with Discount after tax = $60 + $3.60 = $63.60
Answer: $63.60
Step-by-step explanation:
We will prove by mathematical induction that, for every natural
,
We will prove our base case, when n=4, to be true.
Base case:

Inductive hypothesis:
Given a natural
,
Now, we will assume the induction hypothesis and then use this assumption, involving n, to prove the statement for n + 1.
Inductive step:

With this we have proved our statement to be true for n+1.
In conlusion, for every natural
.