Anything that has 1 has x + is A positive number for any purpose of the equation
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:
-9 -72r
Step-by-step explanation:
-9 times 2 is -9
-9 times 8r is -72r