Answer: The percent gain was 25%.
Step-by-step explanation:
Given, Cost price of lot = $1,200
Selling price of lot = $1,500
The percent gain = 
⇒ Percent gain =

Hence, the percent gain was 25% based on his purchase.
The period is pi/3
Have a nice day :)
Equate whats inside (arguments)
with base period of sine function
and solve for x to get period,

So the period of the graph of the given function is precisely 2.
Hope this helps :)
A is your answer
We can cross multiply using x/70=30%/100
Solving it we get:
100x=2100 (70 times 30)
x=21
So we get a, 21 as your answer.
I hope this helped!
Answer:
x= 16 or -8
Step-by-step explanation:
absoultes