A plane took 8 hours to fly 2400km with a tail wind. On the trip flying into the same head wind the trip took 12. Find speed of wind and plane

How are algebraic expressions evaluated using substitution?

What is the equation of a line that passes through points (0, 4) and (-4,-8)?

Maria heard on the radio that the high temperature that day would be to determine the temperature in degrees celsius, she used the formula , where c is the temperature in degrees celsius and f is the temperature in degrees fahrenheit.