C is the answer you are looking for.
Answer:
-49
Step-by-step explanation:
multiply 7 with 7 then i with i and lastly multiply the result numbers
7i × 7i ➡ 7 × 7 = 49
i × i = i^2
49 × i^2 = 49i^2
i^2 = -1 ➡ 49 × (-1) = -49
The ratio of of number of homework papers to number of exit tickets of Mr Rowley and Ms. Alvera are not equivalent.
<h3>Ratio</h3>
A ratio is a number representing a comparison between two named things. It is also the relative magnitudes of two quantities usually expressed as a quotient.
Mr Rowley:
- Homework papers = 16
- Tickets to return = 2
Ratio of number of homework papers to number of exit tickets = 16 : 2
= 16 / 2
= 8 / 1
= 8 : 1
Ms Alvera:
- Homework papers = 64
- Tickets to return = 60
Ratio of number of homework papers to number of exit tickets = 64 : 60
= 64/60
= 16 / 15
= 16 : 15
Therefore, the ratio of of number of homework papers to number of exit tickets of Mr Rowley and Ms. Alvera are not equivalent.
Learn more about ratio:
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Answer:
The correct answer is 6.768.
Step-by-step explanation:
(4.23)(1.6) = 6.768
