The base of the triangle decreases by 30% and
the height increases by 20%.

what is the overall percentage change to the area of the triangle?
state clearly if this is an increase or a decrease.

the base is 18cm
the height is 5cm

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