Answer:
It will be complete in 20 miles and it will be 57 miles when it is complete.
Step-by-step explanation:
37 is one less mile than 38 and 38 is two thirds of 57, so the highway is 57 miles when completed. 57 subtracted by 37 equals 20
9% of $1500 is $15 so she gains an extra $15 for each of the 18 years
$1500 in the bank each year for 18 years is $27000 after 18 years
$15 each year as well so that’s an extra $270 in the bank
The total in the bank is the sum of what she has invested and the interest so the total in the bank is $27270