Step-by-step explanation:
1/2 the fourth answer :)
So if the area of a square is 320 square meters, then because all four sides are equal, you would end up with the equation

which simplifies to
Answer:
$10
Step-by-step explanation:
divide $4 by 8. you get $.50. multiply that by 20 and you get $10
Answer:
6
Step-by-step explanation:
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(7.8×10⁷)+(9.9×10⁷)
(7.8×10000000)+(9.9×10000000)
(78000000)+(99000000)
177000000