Answer:
The substance decays by 7.5% every year
Step-by-step explanation:
Answer:12:10
Step-by-step explanation:
Answer:
42 degrees
Step-by-step explanation:
48 and r are equal.
The box means right angle, or 90 degrees
180-90-48=42 degrees
Answer:
Third answer
Step-by-step explanation:
1 x 7 = 7
36 x 7 = 252
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