Here are some problems that I am not sure what the answer is. Please help me.

10. The height of a rectangle is increasing at a rate of 11 centimeters per hour and the width of the rectangle is decreasing at a rate of 9 centimeters per hour. At a certain instant, the height is 3 centimeters and the width is 8 centimeters. What is the rate of change of the area of the rectangle at that instant (in square centimeters per hour)? 111(m). 12 Let 9(3) = What is the absolute maxim value of g ? 11. 12. A piece of paper is to display 150 square inches of text. If there are to be one-inch margins on the sides and the top and a two-inch margin at the bottom, what are the dimensions of the smallest piece of paper that can be used? The graph of function h follows. Let f(1) = / h(t) dt. 71 y 8 7 6 5 4 3 2 1 4 3 2 1 13 _ Evaluate f (4) The function h is dened over the real numbers. This table gives a few values of h. :1: 11(2) 7.1 3.32 7.01 3.1 7.001 3.03 6.999 3.03 6.99 3.1 6.9 3.32 1 What is a reasonable estimate for 11517 Mm)? Functions 1' and g are graphed. Functions 1' and h are graphed. y=f(\"') y Find lim 12x + 1222 4 . -+-1 24 - 2-2 Find lim 24- 4 5. -900 x +4 Find the limit as x approaches negative infinity. lim V9x2 + 2 T->-00 2x - 9 6. The tangent line to the graph of function h at the point (-2, -4) passes through the point (1, 5). Find h'(-2). 7. h' ( - 2) = [ 3y2+x2 - xy =1 Find ay 8. dx y = x2 tan(2x5) Find - dy dx 9