What is the sum of the interior angles of a enneagon (19-sides)

Natalie used 112 inches blue yarnas a border around her rectangular bulletin board. If the bulletin board is 36 inches wide, how long is it

Gemma had $2,030 in her checking account. She wrote a check $526 to pay the rent on her apartment. After the landlord cashed the check, how much money did Gemma have left in her checking account?

Jack has 3 boxes of pencils with the same number of pencils in each box. His mother gives him 4 more pencils. Now jack has 28 pencils. How many pencils are in each box?

Suppose A and B are 3 x 5 matrices. Which of the following are the dimensions of the matrix A + B? a. 3 x 5 b. 8x8 C. 15 x 15 d. 81

What is the value of 6x^2+4x+8, when x = 7

What is 656 divided by 78

What is the least common multiple for 165 and 22?

What is the scientific notation of 8888800

A ski shop owner surveys 200 people who ski or snowboard. If 196 people ski and 154 people do both activities, how many people snowboard?

7.) Sophie can write 80 words in 5 minutes How many words can she write per hour