12 points--geometry

as part of a science project, you need to estimate the number of blue spruce in a 50 acres forest. you count 36 trees in 3 acres and notice that the trees seem to be evenly distributed. estimate the total number of blue spruce trees in the forest.

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck

1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]