Did you get your certificates photocopied ?

So we need to find a common denominator, or else we can't do anything with these fractions.
We cross multiply;
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Answer:
in person tutor
Explanation:
if you internet is down then you can't continue your class, unless they are in person
Answer:
Testimonial.
Explanation:
Testimonial is a formal statement testifying to someone's character and qualifications.