There is a mistake on the graph below. what is it? NO LINKS OR I WILL REPORT

a) The shaded region is incorrect. We should shade the region that is on top of the line
b) the y-intercept was not plotted correctly
c) the line should not be solid. the line should be dashed
d) the line should go down

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.