A) A painter uses 1.2 liters of the paint to cover 1m2 of the wall.
How many square meters he can cover with 6.6 liters of paint?

b)
One pound of candies costs $3.50.
How much will we have to pay for 3 lb?

The primary colors of light are red, green, and blue. If you subtract these from white you get cyan, magenta, and yellow. Mixing the colors generates new colors as shown on the color wheel, or the circle on the right. Mixing these three primary colors generates black.Step-by-step explanation:

To solve this problem, all we need is to do ratio and proportion. We know that for every 1.2 Liters, we can cover 1 m^2 of wall. Hence the ratio is:

ratio factor = 1 m^2 / 1.2 Liters

(1) for 12 Liters of paint, the area is:

area = 12 Liters * (1 m^2 / 1.2 Liters) = 10 m^2

(2) for 6.6 Liters of paint, the area is:

area = 6.6 Liters * (1 m^2 / 1.2 Liters) = 5.5 m^2

(3) for 4.8 Liters of paint, the area is:

area = 4.8 Liters * (1 m^2 / 1.2 Liters) = 4 m^2

Step-by-step explanation:

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b