The dance team is selling shirts for 12$ each. the dance team made a total of 288$ with all of the tshirts they sold, which equation shows how many t shirts they sold?

Can someone tell me if this is perpendicular? !

What is the surface area of the sphere?

Which option identifies how kevin should proceed in the following scenario? four years ago kevin designed an mp3 player for young children. now that technology has changed, he would like to update his design to ensure that it encompasses cutting-edge techniques. by creating a third-angle projection of his ideas by designing an isometric projection of his new ideas by referring to past designs and illustrations of his original model by conferring with engineers who have improved upon similar devices