What is the balance as a result of having a credit of $ 84 and a debit of $29

When y’all answer can y’all explain too !

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?

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