I have a question if doing slope and it says "goes through (-2,3) and slope= -2/3"

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

Find the area of the regular hexagon if a side is 20 cm.

Write the expression 7x^3-28xy^2 as the product of 3 factors