The demand function for a certain kind of mattress is given by p = 600e^−0.04x
where p is the unit price in dollars and x (in units of a hundred) is the quantity
demanded each month.
(a) Find the number of mattresses demanded per month if the unit price is
set at $250 per mattress.
(b) Use the results of part (a) to find the consumers’ surplus if the selling
price is set at $250 per mattress.

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?

Can someone me with my math problem pls my teacher is on my back about this