The product of a number and -8, decreased by 13 is less than or equal to 27 how would this be written out?

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?