The question is in the picture, please help!!
a. (16/7 , 6/7)
b.(4 , 6/7)
c.( 2 , 6/7)

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?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.