What are the reciprocal of these 2 expressions
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1.) 2/x+1

2.) c^2-1

Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2