Okayy? But what’s the answer.?

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?