Directions Multiply both sides of the equation by r

Find Sn-rSn

Factor out Sn and a

Solve for Sn

Will give brainiest if answered

answer: get more recipes with 3 magazines for $20! i often use chicken broth instead of water. 3 tablespoons butter, divided; 1/2 cup freshly grated parmigiano-reggiano bring water and salt to a boil in a large saucepan; pour polenta slowly into 5 minutes to thicken; stir and taste for salt before transferring to a serving bowl.

11

step-by-step explanation:

32.50-7.50=25

225/25=11

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.

7 is the median   7.875 is the mean

step-by-step explanation:

3,4,5,6,8,11,13,13