Respuesta :

Answer:

Area of wall = length × breadth

Here, length = 80 m and breadth = 15 m.

= 80 × 15 sq. m.

= 1200 sq. m.

Therefore, painting the wall = area × cost per square unit.

Given, rate = $ 4 per sq. m.

= 1200 × 4

= $ 4800.