The sum of two numbers a and b is equal to c. The number line below shows the values of a and c. What is the value of b?​

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

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