In how many ways can a family of four be seated at a round table if two brothers must sit together? A. 1
B. 8
C. 2
D. 4

What is the sum or difference 4x10 – 9x10 (1 point) –5x10 –5x20 –36x10 –36x20 this is the cca test i need all the answers this is the first 2

What is the area of triangle abc if a = 8, b = 11, and c = 15?

What is the average rate of change for this function for the interval from x=2 to x=4 ?