The practical domain is all real numbers from 4 to 9, inclusive.
The practical range is all real numbers from 49.6 to 111.6, inclusive.
These are the correct options.
Explanation:
Given function is f(t) = 12.4t
Let us assume that Nate works 'x' hours so 4<x<9
And multiplying the hours with his earnings we get the range.
4*12.40=49.6 and 9*12.40=111.6. Let the amount earned be represented by y
Hence, domain can be represented as 4<x<9 and range can be represented as 49.6 < y < 111.6
Using the formula for the future value of an annuity: FV = P x (1 + rate)^time - 1 / rate)
1st account:
15,000 x (1 + 0.05)^10 - 1 /0.05) = $188,668.39
2nd account:
15,000 x (1 + 0.10)^10 - 1 /0.10) = $239,061.37
29 percent is your answer