Is 31 a prime or composite number

Ten individuals attend a group ski lesson. two individuals are selected from the group lesson to receive private lessons for a 15-minute period. in how many ways can the two individuals be selected if order is not important?

Convert to a decimal: 8/25

Find volume of pyramids 6in 8in 10in and 17in 12in 10in

Complementary events are described as the events of one outcome happening and that outcome not happening. Given that definition, choose the complementary event to a teacher choosing a girl's name when drawing names from a cup in class A.

If y=9 when x=3, find x when y=15

An expression is written as m-5 (m+3) + 7m. What is the value of the expression when m=x+1?

Cormac is making 29 phone calls each week as part of a fundraiser. Last week, he made 10 phone calls on weekdays. Which equation could be used to find x, the number of phone calls he made last week on weekend days?

Jasmin's dog weighs 58 pounds. Her vet told her that a healthy weight for her dog would be less than or equal to 40 pounds. Jasmin's dog can lose an average of 1.5 pounds every week.

A town with an initial population of 2,000 doubling in size every 10 years. Exponential function or no?

20% of the past 60% days how many days did it rain