Sam music teacher told him to practice his trombone for 5/10 of an hour he's been 2/6 of an hour practicing did he practice long enough?

The height (h) of a fireball launched from a Roman candle with an initial velocity of 64 feet per second is given by the equation h (t) = - 16t^2 + 64t, where t is time in seconds after launch. Use the graph of this function to answer the questions.

Doug poured 1/2 of a gallon of water into a bucket. Later, he added 4/5 of a gallon more. How much water is in the bucket now?

Perry has 81 red balls, which she wants to arrange in rows. If the number of balls in each row must be equal to the number of rows, how many balls must there be in a row? 3 7 9 11

Your teacher assigned 20 homework problems. You completed 5 on Monday and 10 more on Tuesday. What fraction of the 20 problems did you complete?

For his long long distance phone service Chris pays a $6 monthly fee plus 8 cents per minute. Last month, Chris's long distance bill was $11.52. For how many minutes was Chris billed

Astronauts use stool in space that weighs 5 ounces on earth how many grams does the tool weigh round your answer to the nearest hundredth

The product of - 4 and a number is 36

The price of a shirt is reduced from $27 to $20. what is percentage decrease in the price?

Solve the equation - 1/2 = c-6/7

Dakota mixes two cereals for breakfast. One gram of cereal A has 6 milligrams of sodium and 7 calories. One gram of cereal B has 8 milligrams of sodium and 5 calories.