4 (2 - 4a) - 33 = 65

Kevin deposited $250 each month for the first 3 months in his savings account. Then, he deposited $302.50 each month for the next 4 months. What is the average amount that Kevin deposited each month?

Mary is 5 years older than Bob. If the sum of their ages is 39, write and solve an equation to find their ages

A class of 28 students. the ratio of girls of 3 girls 4 boys. what is the ratio for the number of boys to total number students in the class?

Find the critical value tc for the confidence level c=0.98 and sample size n=18

If the outliers are not included, what is the mean of the data set? 76, 79, 80, 82, 50, 78, 83, 79, 81, 82 A. 77 B. 78 C. 79 D. 80

What is the solution to the following equation? 9x^2-12x+4=17

If the chance of rain is 3/4, what is the chance it will not rain? A) 0% B) 25% C) 50% D) 75% E) 100%

Convert 8.4 ft to inches.

Each school year the 7th graders who study life science participate in a special field trip to the zoo in 2010 the school paid 1260$ for 84 students to enter the zoo in 2011 the school paid 1050$ for 70 students to enter the zoo in 2012 the school

Wendy's sells frosties in to sizes. A regular Frosty contains 350mL of ice cream and a large has 2/5 more. How much does a large frosty contain?