At North Community College, there are twice as many sophomores as first year students. The number of juniors is 40 more than the number of first year students and the number of seniors is 50 fewer than the number of sophomores. There are 350 students at North Community College. How many of these students are first year students? A. 60

B. 65

C. 72

D.120

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

Write the component forms of vectors u and v, shown in the graph, and find v − 2u. u= (< -3, -2> , < -3, -1> , < -2, -2> , < -2, -1> ) v= (< -5, 1> , -4, 0> , < 0, -4> , < 1, -5> ) v-2u= (< 5, 3> , < 0, 4> , < 4, 0> , < 5, -3>

2pointswhat is the best next step in the construction of the perpendicular bisector ofab?