Answer:
31
Step-by-step explanation:
(45) - (+14)
45 - 14 (Negative sign is distributed)
=31
I believe that she will need 56 square tiles. You get this by doing 7 times 8 which is 56. Then, since each tile is a one-foot square tile, you would need 56 tiles to cover the whole floor.
Answer:
Step-by-step explanation:
Hence proved!
Answer:
Step-by-step explanation:
20
Answer:
128.8cm^2
Step-by-step explanation:
area of circle with radius 6cm = π6^2
area of circle with radius 9cm = π9^2
shaded region is equal to π9^2 - π6^2
which is 41π
therefore the shaded region is = 128.8cm^2
