At a petrol pump, a car's tank got fully filled using 7.8 L of petrol. If the tank's capacity was 45 L, how much petrol did it contain already?(in liters)

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

Determine if the equation defines y as a function of x: 2xy = 1. yes o no