Elliot is 63 inches tall which is 9 inches taller than his cousin jackson right and solve an addition equation to find jackson’s height

Consider the function represented by the equation 1/2 j + 1/4 k equals 3 which shows the equation written in function notation with j as the independent variable

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.

(60 points) explain this in detail