What is the most precise name for the shape of the fence

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

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

Will give brainliestbased on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m?