A persons bill at a restaurant is $42.75. Estimate the amount of a 15% tip

2(n-1)+4n=2(3n-1)n=0no solutioninfinitely many solutions n= - 4 !

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount

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.