SOMEONEEE HELP ANSWER THIS QUIC ILL BRAINLIST U SOMEONE!!!ASAAPAPPAP IIIlas' car usses 65 L of petrol to travel 728 km, while Hanis car uses 48 L in 552 km.

A) which car is more economical? provide calculations to support your answer

B) how much petrol would each car use to travel 830 km?

Writing the simplest form of a fraction means the numerator and the denominator have no common factors other than 1.a. trueb. false

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?