Mrs. Johnson measured 3 rectangular rooms that she wants to tile. What is the total area of the​ rooms?

Find the area of each room and add the areas

Step-by-step explanation:

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the area of rectangle is length x breadth. The area of each room would be found and the three areas would be added together

for example ,

dimension of room 1 = 5 x 3

dimension of room 2 = 2 x 3

dimension of room 3 = 4 x 5

area of room 1 = 15

area of room 2 = 6

area of room 3 = 20

total area = 15 + 6 + 20 = 41

susie has 7 apples