Math.Fractions.help? ;-; please

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?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2