At a breakfast diner a cup of coffee costs $2.75 and a muffin is $3.25. what is the sales tax on the two items if rate is 7%?

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle

What is the measure of one interior angle of a pentagon

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?