3 years ago

Can somebody help me??????

Mathematics

1 answer:

maria [59]3 years ago

8 0

9514 1404 393

Answer:

168 square feet

Step-by-step explanation:

The model has shading in groups of 10 where possible. This makes it relatively easy to find the partial products and add them up.

(10 +4)(10 +2) = 10·10 + 4·10 +10·2 + 4·2

= 100 +40 +20 +8

= 168 . . . . square feet

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