Can someone me with these 4 problems i need them for tomorrow,

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

Given the graphed function below which of the following orders pairs are found on the inverse function

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.