Answer:
Angle F= 140
Step-by-step explanation:
Decimal: 2.1
Fraction: 21/10
A. 3561 ft²
πr² = the area of a circle
base · height = volume
9²π = 254.47
254.47 · 14 = 3561
No of molecules = no of moles x avogadro’s number
0.75 ( 6.02 × 10²³) = 4.515 x 10²³ (standard from)
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