Answer:
A. 20
Step-by-step explanation:
because she has twice as many and if you have twice as many then you'll have 40 so 40+20=60
If A = L x W. . . Then L = A/W
A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding.
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Answer:
x² - 4x + 12
Step-by-step explanation:
x=2+2.82843i
x=2−2.82843i
