Combine like terms to create an equivalent expression.
-5.8c+4.2-3.1+1.4c−5.8c+4.2−3.1+1.4 c

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

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?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?