(10 points) a square pyramid is attached to the top of a cube as shown below.

if x = 10 inches and y = 15 inches, where y is the height of each triangle of the pyramid, what is the surface area of the figure?
900 square inches
800 square inches
700 square inches
1,000 square inches

What is the rotational symmetry of a wheel

Using elimination, what is -4x+2y=-12 4x+8y=-24

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0