PLEASE HELP Janet is selling lampshades at a craft fair. The price per lampshade in dollars is f(x) and it is a function of x, the number of ampshades bought, as shown by the graph below:

What is the total cost of buying lampshades from stall?

graph is in the photo^

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

"princess tower" in dubai is considered the world's tallest residential building, towering to 1 0 1 101 floors! t ( n ) t(n) models the number of tenants living on floor n n of the tower. what does the statement t ( 2 0 ) = t ( c ) t(20)=t(c) mean?

What are the steps to solving the inequality 3b + 8 ≥ 14?