Colin was thinking of a number. Colin adds 18 to it, then doubles it and gets an answer of 65.5. What was the original number?

Is there any potential negative effects immigration can have

the population of a city in 2005 is 18,000. by 2010, the city's population is 45,000. economists have determined the that the population growth follows an exponential model. if they are correct, what is the projected population for 2015?

Luka is eating crackers. each serving has 1.6 grams of fat. She ate 0.75 serving of crackers during lunch and is now eating 1.5 servings of crackers as a snack l. How many grams of fat did Luka eat in all?

A circle has a circumference that is greater than 8 meters. The inequality 3.14 d greater-than 8 can be used to determine the possible lengths of the diameter of the circle.

The circumference of a circle is 3.14 inches. What is the area of the circle?

What's 3 divided 534 using multiplication check

Find the quotient 5/8 divided 8 1/2

Bessie has an annual salary of $51,360. Each month she has a car payment of $210 and a student loan of $50. If she applies for a home loan, how likely is it Bessie will be approved based on her debt-to-income ratio? a.

A large swimming pool has a perimeter of 1,016 meters, this rectangular-shaped pool is 40 meters longer than 5 times its width. find its dimensions.

The Big Drop is a roller coaster that carries a maximum of 20 people per trip. Use this information to answer the following questions.