For a fixed amount of a gas at a constant
temperature, the volume of the gas is inversely
proportional to its pressure. At a pressure of 30
pounds per square inch (psi), a gas has a volume
of 600 in.3.
Which function can be used to model the volume
of the gas y, in cubic inches, when the pressure is
x psi?
what would the volume of the gas be if the pressure is increased to 40 P

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)