Helps me plz guys and girls this is confusing

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

Asquare has a perimeter of sixteen centimeters. what is the length of each of its sides? a. 8 cm c. 9 cm b. 4 cm d. 10 cm select the best answer from the choices

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting