Vicky came home from the matinee at 5:45 pm. The travel time to and from the cinema was 1/2 hr each way. She spent 2 1/4 hrs at the cinema. What time did she leave home.

Is 1/24, 2/48, and 3/72 equivalent

Nick chooses one card from a standard deck of cards and then rolls a number cube. What is the probability that nick chooses a heart and rolls a 2?

Jack has 3 boxes of pencils with the same number of pencils in each box. His mother gives him 4 more pencils. Now jack has 28 pencils. How many pencils are in each box?

Replace mixed number with an equivalent fraction

The heights of South African men are Normally distributed with a mean of 69 inches and a standard deviation of 4 inches. What is the probability that a randomly selected South African man is taller than 72 inches

The product of a number m and 6 is no less than 30.

Suppose R and S are reflexive relations on set A and T is a transitive relation on set A. Prove or disprove each of these statements: a) R∪T must be transitive. b) R⊕S is irreflexive. c) R◦S is reflexive

The present age of Joyal's mother is three times the present age of joyal. After 5 years their ages will add up to 66. Find their present age

Zoey buys A new game for $45 there is a 4% tax what will be the final cost of the game

Find the 20th term in the following arithmetic sequence 12,15,18,21, ...