Is the following true or false?

−2.18∈ℝ

Which table shows a proportional relationship between miles traveled and gas used?

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?