Select the twrm that best describes the statement . all lines are straight or a tringle. hs four sides. conjuction, disjunction, negation, conditional

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

How do you use the elimination method for this question? explain, because i really want to understand!

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