Answer:
i think 20.74
Step-by-step explanation:
I think that might be right because if you have 24.40 mines - 15% that is 20.74
Let the original cost of laptop=x
Savings=20% = 20/100
Saved amount = $140
Original cost = saved amount * 1/savings
x = 140* 100/20
x = $7000
The correct answer is B. $210
3 in the power of ten means "10^3."

How to solve exponents is to multiply the number as many times as it's exponent. So in this case you will have to multiply ten, three times.

Which would mean that....

The answer is 10^3.
Hope this helps.