When the elevator was out of service, Debi walked down 21 flights of stairs. She stopped to rest after every 3 flights. How many times did Debi stop to rest?

A circle with a radius of 5 cm sits inside a 11 cm x 11 cm rectangle

A preschool uses 4 gallons of milk a day. How many fluids ounces of milk does a preschool use in a day?

How do you tell wether two angles are complementary, supplementary, or neither?

A hungry elf ate 30 of your muffins. that was 5/8 of all of them! how many are left?

combining like terms simplify the expression -6k + 7k

30. Each interior angle of a regular polygon is 4 times each exterior ang (a) Find the size of each exterior angle of the polygon. (b) Find the number of sides of the polygon.

Which of the following statements about the number line is true?

The launch site for trigon balloon co. is 250 ft above sea level. A hot air balloon is launched from the site and begins to rise at a rate of 110 ft/min.

a machine can produce 6 yards of fabric in 2 minutes. how much fabric can the machine produce in 7 days?

Sixty-seven percent of adults have looked at their credit score in the past six months. If you select 31 customers, what is the probability that at least 20 of them have looked at their score in the past six months? 0.450 0.550 0.692 0.142