How to work the problems out and the answers to 3 of my homework questions?

Regina takes yoga classes 2 days a week at the community center the cost for the classes is $72 and Regina pays extra$12 to rent the yoga equipment used in class

Write a problem that uses a fraction.

In January, Emma was 62.25 in tall. In December, she was 65.5 inches tall. How much did Emma grow between January and December?

Find the greatest possible value for a+b+c+d if b is a positive integer and a, b, c, d satisfy the system of equations a+b=c b+c=d c+d=a

A system of equations is shown. x + y = 7 2x - y = - 1 What is the solution to the system of equations?

Assume that the following confidence interval for the difference in the mean time (in minutes) for male students to complete a statistics test (sample 1) and the mean time for female students to complete a statistics test (sample 2) was constructed

I have a real question how do you choose a brainiest answer

How can you solve this problem 2250=5000 x R x 5

Evelyn bought 12 chicken wings for $10. What was the cost of the wings in dollars per wing?

If a^2+b^2=c^2. then the triangle is a right triangle a triangle with side length of 16m 30m and 34m is a right triangle true or false