You go to the post office to mail 9 letters. The postage for each letter is 39¢. How much money will the post office charge you to mail the letters?

Maria ran 4 7/8 miles on monday she ran 2 3/8 miles on friday, how many miles did maria run altogether?

caden buys 3.9 pounds of grapes that cost $1.80 per pound. which expression can be used to find the total cost of the grapes?

Use the distributive property to remove the parentheses. 4b² (6-10b⁴) Simplify your answer as much as possible

Two thirds equals 18 over x plus 5

Explanation how solve step by step 2/7m-1/7=3/14

Mr Thomas has to travel from New York City to Princeton, New Jersey and back three time each week. If Princeton is 66 miles from New York, how many total miles does he travel in a week

The tempature rose 4 degrees every 90 minutes before noon and rose 2 degrees every 45 minutes after noon are these rates equivalent explain your reasoning

What are the solutions of x^2+10x+21=0?

With 30l of milk, we can make 8.4kg of white cheese. a) What is the quantity needed to make 10kg. With 100l of milk, what weight of white cheese can we make?

What is the least common multiple of 4 7 and 6