Find the surface area of the part of the plane z= 2x+2y+4 over the region R bounded by the triangle with vertices (0,0), (2,0), (2,4).

Five dinosaurs go for a walk and come across some lovely chicken wings. their names are rexy, bronto, steggy, paly, and terry. there are exactly 5 dozen wings(equal enough for each dino to have a dozen right? ); however, terry is on a diet and he only eats 6 wings. if paly eats 2 more than terry, steggy eats 4 more than paly, and bronto and rexy eat the same amount because they are really hungry from not eating all day, how many chicken wings did each dino eat?

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n