Which of these statements correctly compares the graphed function f(x) to the function g(x)= x/2 +5

What does x = in this equation x+3+2x=x+5

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists