A rectangle is three times longer than it is wide. If its perimeter is 48cm, find its length and width

If 3x+8=3x+8 is it one solution or no solution

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.

Corresponding angles are a. always b. sometimes c. never congruent