What's the interquartilr range of 78,88,82,57,98,68,78?

Pls i’m dumb as heck i’ll give y’all so many points if that encourages you

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

5/6+7/8what is the answer sealsdbdbshd