√6·√5·√2 what is the answer for this. Im very confused

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

What is not true about kl and mn? what is mn? (show your work)

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys