Which of the following is not an object in our solar system? star black hole asteroid comet

Take a guess im getting rid of my account might as well do it in style a fishing boat, with a ladder in it, is leaning against a wall at the harbor. there are 5 oars and 2 fishing nets in the trawler. the distance between two consecutive steps on the ladder is 1 meter. if waves lashing against the wall rise a half meter in every half hour, how long will it take before 6 steps of the ladder are under the waves?

Which of the following best describes the economy of africa?

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4