Iwould like to know if 4 dm is greater or less than 40 cm

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Given: klmn is a parallelogram m? n=3m? k, lf ? kn , ld ? nm kf=2 cm, fn=4 cm find: lf, ld