Prove that for any arithmetic sequence a7+a10=a8+a9

What are the constants for the problem 7 - 5x + 1

The Cohains' monthly budget allowed them to spend $245.00 for groceries each month. During November they spent $356.82. How much more or less did they spend than budgeted?

If sin α = (12/13), and cos α = (5/13), then tan α = ?

Find the difference in the volume and total area of a cylinder with both a radius and height of1 r-1, h-1

The director of a MPA program finds the incoming 200 students in the department with a mean GPA of 3.04 and a standard deviation of. 57. Assuming that students' GAPs are normally distributed, what is the range of GPA of 95% students

Find the inverse of A (r) = 15+3r

What is the 7 described as in 2 x 5 + 7 (3 + 13) ?

Write an expression that is equivalent to 4 (x+2y)

For an employee training, the employee to instructor ratio is 18 to 2. If there are 20 instructors for the training, how many employees participated in the training?

Marisa drank one cup of milk and ate x small vanilla cookies for a snack. The linear equation below represents y, the total number of calories in Marisa's snack. y = 12x + 120 a. what is the y-intercept represented by this equation? b.