Atruck stops at a gas station where diesel fuel costs $3.99 per gallon. the truck needs 8.8 gallons of diesel for the driver to complete all his deliveries. estimate whether $36.00 will be enough to pay for the fuel. justify your answer.

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.