Carly and rob combined their dvd collection now they have 42 dvds all together. carly had 4 more dvds than rob how many dvds did carly have

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x

Which value of y will make the inequality y< -1 false?

Plz : denver is about 5,200 feet above sea level. which number line best represents this integer?