Step-by-step explanation: A square can be defined as a rhombus which is also a rectangle – in other words, a parallelogram with four congruent sides and four right angles. A trapezoid is a quadrilateral with exactly one pair of parallel sides.
A reduction of 15% per year means 100-15=85% reducing factor. 1st year: 0.85×18000=$15300. 2nd year: 0.85×15300=$13005. 3rd year: 0.85×13005=$11054.25. So after 3 years the value of the car is $11054.25 or $11054 to the nearest dollar.
