We toss two coins and observe the upper faces of the coins.

a. observe at least one head

b. observe at least one tail what is the probability that both a and b occur? what is the probability that a or b or both events occur?

Students are selling muffins at a school bake sale. One muffin cost $0.25, 2 muffins cost $0.37, 2 muffins cost $0.49, and 4 muffins cost $0.61. If this pattern continues, how much will 7 muffins cost? Explain how you found your answer.

What is the ordered pair solution? x+y=6 x=y + 2

Each of the faces (sides) has an area 66 square millimeters. Find the total surface area of the triangular pyramid.

Adam has been asked to post a parcel for a family member. He has been told that the parcel weighs 12lbs 8oz. How much does the parcel weigh to the nearest whole kilogram

7.97 as a mixed fraction and a improper fraction

How many tens in 3100

What is the measure of the angle of the dilation that corresponds to ∠BAC of the original figure? A. 45° B. 135° C. 90° D. 22.5°

What is the solution of 5x-6=44

Sector area definition

Simplify the expression (-4k^4j^5) ^3 (k^3j^3) ^7