What is the mcd of 2 prime numbers

Drew is cooking a roast beef for dinner. It weighs 5 pounds, and it needs to cook for 20 minutes per pound. How long should Drew cook the roast beef? A 5/20 hour B 1 hour C 90 minutes D 1 2/3 hours

Check all restrictions on the domain of g circle h. x not-equals 0 x not-equals negative 2 x not-equals negative two-thirds There are no restrictions.

Maria bought 7 boxes. A week later half of all her boxes were destroyed in a fire. she only has 22 boxes left. How many did she start with? (I need an equation not an answer)

In a pet store the number of dogs is 12 more than three times the number of cats. If the pet store has 21 dogs how many cats does it have

What are all the common factors of 15,45, 90

Why is square root of 2 irrational?

If a 28 ft rope is cut into two sections with one section 3 times as long as the other section, how long is the shorter piece?

A fair number cube, labeled with 1 through 6 is rolled four times. What is the probability of rolling a 6 all four times?

Alex can run 24miles in 3 hours. What is his average speed in miles per hour?

A 400 gallon swimming pool is being drained. After three hours, 250 gallons have been drained. If the rate of drainage continues, how long will it take to drain the pool? A. 1.875 hours B. 4.8 hours C. 5.2 Hours D. 33,333.33 hours