Find 1 + 2 + 3 + 4 + ... + 50, the sum of the first 50 natural numbers.

The sum is

Solve the following equation by factoring (x+2) (x+3) = 12

Subtract the fractions and reduce to lowest terms: 89-6 2/3

Solve the equation. y 3 = - y 9 y = 1 y = 3 y = 6 y = 9

One half liter of lemonade concentrate was added to 3 liters of water. How many 1/3 servings of lemonade can be made?

Use the frequency histogram to answer each question. (a) determine the number of classes. (b) estimate the frequency of the class with the least frequency. (c) estimate the frequency of the class with the greatest frequency.

There are 300 students in the eighth grade. The ratio of girls to boys is 3 to 2. What percent of the students are boys?

Jake is building a fence around his property. He wants the perimeter to be no more than 100 feet. He also wants the length to be at least 30 feet longer than the width.

You have $3.70 in dimes and quarters. You have 5 more quarters than dimes. How many of each type of coin do you have?

What is the median and mean of: 7,13,10,7,16

Bryce has a rug that is 14 decimeters by 16 decimeters. Draw a sketch of Bryce's rug. Then find the area of his rug. Show your work and label the answer with the correct units.