The length of a rectangle is nine more than the width. If the perimter of the rectangle is 62 feet, what are the length and width

This doesn’t make sense to me it’s supposed to be lcm ( least common multiple )

2-digit numbers less than 91 which are 1 less than a multiple of 10

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.