Answer:
Step-by-step explanation: 58 - 3 = 55.
To determine how much of the wall is blue we first need to find its area. The wall is a rectangle, then its area is the product of its height and length:

Hence, the area of the wall is 140 square ft. To determine how much of the wall is already painted we multiply this by 1/2, then:

Therefore, 70 square ft are blue.
Answer:
if it sell 20 it sells30
Step-by-step explanation:
answer is 30%