Answer:
Step-by-step explanation:
tanA = sinA/cosA = (4/7)/(3/7) = 4/3
The fraction is 
Step-by-step explanation:
Let,
The denominator of fraction = x
Numerator of fraction = x-3
Fraction = 
According to given statement;
1 is added to the numerator, the value of the fraction becomes 3/4.

Using cross multiplication

Fraction = 
Keywords: fraction, division
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Answer:
Luis:

Marina:

Answer: Marina got the better percent score than Luis
Marina:
Answer:
B
Step-by-step explanation: