The water flow rate of a regular shower head is 3.5 gallons per minute. At this rate it would cost $1.90 for the water used for a 10 minute shower​

Solve the system of equations. y= 2x y= x^2 - 15

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?