Assumption janice speed of reading is constant throughout
in one minute she can read 40 words since 280÷7=40
Answer:
You're answer is -5 :)
Step-by-step explanation:
First, we have to find the area of the wall, then the area of the window, then subtract them.
Area of wall = 9 × 9 = 81 sq.unit
Area of window = 3 × 3 = 9 sq.unit
So, the area of the wall ( excluding window ), = 81 - 9 = 72 sq. unit
