A worker in a factory recorded the total number of defective tires created throughout the day. Out of 450 tires, 15 of them were defective. If they make 1,200 tires in a work day, how many tires would be defective?

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

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?

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?