Expand (2x + 3)(x - 1). Your answer should be a polynomial in standard form

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

Precalculus question, image attached.

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.