Answer:
$24.15
Step-by-step explanation:
What you do is you take 15% and make it into a decimal which is .15.
Then you times it by $21. 21*.15=3.15.
You then take the $3.15 and add it to $21 to get
$24.15 as your answer.
Answer:
Because there is a chance that one control group will get injured, or maybe even die.
Step-by-step explanation:
Putting one's life in danger is considered unethical and is well, illegal.
87.96 cm
I hope this helped out! Have a nice day :)
Answer: 157 cm²
Step-by-step explanation:
A semicircle whose diameter is 20 cm will have an area of 157 cm²
Answer:
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