The expression (2x^2+6x++3x+5) is equivalent to

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

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

Hello, i need compare km^2 and km. what's difference in this?