What is the greatest perimeter of a rectangle with an area of 39 ft.²

A train averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the mountains. if a trip of 300 miles took 3 hours and 48 minutes, how much of it was through the mountains?

You roll a normal 6-sided die. What is the probability that you will roll a 2 or a 4?

If it takes 5 people 5 minutes to make 5 pencils, how long would it take 100 people to make 100 pencils?

What is 155 percent of 30

How do you know that 35x5=5x35 without finding the products?

Bob needs to mix 2 cups of liquid lemonade concentrate with 3.5 cups of water to make lemonade. Bob has 6 cups of lemonade concentrate. How much lemonade can he make?

The temperature decreased overnight by 15.2°C to a temperature of - 12.8°C. Suppose t represents the temperature before it decreased. Which equation can be used to represent this situation? A. t - 15.2 = - 12.8 B. t + 12.8 = - 15.2 C. t - 12.8 = 15.

The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed, with mean of 3.2 pounds and standard deviation of 0.8 pound.

What is the surface area of a sphere with a circumference of 50 ft? Round the answer to the nearest tenth.

The table shows the prices for games and Bella soccer league. her parents and grandmother attend a soccer game. how much theu spend if they all went together in one car?