An object travels 4/5 miles in one-half hour. What is its speed?

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?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

What is the value of f(x) = 2.2 for f(-2)?