Finley's pumpkin had a mass of 6.5 kilograms (kg) before he carved it. After carving it, the pumpkin had a mass of 3.9kg. What was the percent decrease in the mass of the pumpkin?

A road race is 10 kilometers long. after the starting line there is one water station every 0.4 kilometer including at the finish line. How many water stations are there

An autopilot attempts to maintain an airplane's altitude at a constant 18000 feet. because of random variations, the actual altitude x is a normal random variable with mean 18000 feet and variance=2500 feet2.

What are all the powers of 4 in the range of 4 to 1000?

The speeds of a car and a train after they activate their emergency brakes are represented by the following tables: Car Time (seconds) Speed (m/s) 0 69.4 2 34.0 4 16.7 6 8.2 8 4.0 Train Time (seconds) Speed (m/s) 0 88.9 2 50.1 4 28.1 6 15.8 8 8.

A basket holds n apples. You pick 2n-3 apples, and your friend picks n+4 apples. Write an expression that represents the number of apples you and your friend picked. Interpret the expression.

Which set of side lengths could be used to form a right triangle?

What's the greatest common factors for 24 and12

john is 2 years more than twice as old as david. the sum of their age is 14, find the age of each child

The ratio of men to women working for a company is 5 to 4. If there are 96 women working for the company, what is the total number of employees?

0.884 in standard form