Hello! I'm having a bit of trouble with these and I would appreciate it alot if you helped me! THANK YOU!! Factor and simplify. Choose the letter of the correct answer and write your answer below.

Multiply. write your answer in simplest form. 3/8 x 5/7

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.