1/3 times blank equals 2/5

The world population is estimated to be nearly 9 billion by the year 2050. North America - 7.9% South America - 5.3% Europe - 7.1% Africa - 20% Asia - 59% Other - 0.7% What is the estimated population of Africa in the year 2050?

0.8b = - 1.12 what is b

At 1:00 am the temperature in garden city was - 8° f. by noon, the temperature was 25° f. what was the change in temperature, in degrees fahrenheit, from 1:00 a. m. to noon?

Thomas Jefferson was born 11 years after George Washington. In 1772, Washington's age was 5 years more than 7 times the age of Jefferson in the year of 1748. What was the age of each man in 1748, 1776, and 1787

Which is bigger 3.9 or 3.92

What is the probability that she gets exactly 4 or exactly 5 questions right?

Suppose you choose a marble from a bag containing 2 red marbles, 5 white marbles, and 3 blue marbles. You return the first marble to the bag and then choose again. Find P (red then blue)

12*5-9*4+14 + (54:3) - 8*2

What are the factors of m2 - 6m + 6m - 36? (m - 2) (m + 18) (m - 3) (m + 3) (m - 4) (m + 9) (m - 6) (m + 6)

the total weight of six pieces of butter and a bag of sugar is 3.8lb. if the weight of the bag of sugar is 1.4lb what is the weight of each piece of butter