Hey guys what is this type of equation/ question called 1 < x < 30

Which value of c would make he following expression completely factored? 8x+cy

(01.02 lc) angle abc has point e on ray ba and point d on ray bc. points e and d are equidistant from point b. to bisect angle abc, which of the following needs to be identified for the construction? the distance between points e and d the point in the angle that is equidistant from points e and d the endpoint of rays ba and bc the point outside of the angle that is equidistant from points e and d

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?