Simplify the expression

(4x + 1/2) + (7x - 5 1/2)

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

Select a graph that have an equation with a < 0

In the geometric progression –3, 12, −48… what term is 3,072?