8th grade math (will give brainliest)

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab