Hitchin girls' school
the mathematics department
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elsi wants to buy 225 paper plates
for a big party. three local shops
sell paper plates:
easoning shop 1
shop 2 shop 3
1 20 for 35p 50 for 90p 25 for 49p
from which shop should elsi buy the plates?

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Adoctor administers a drug to a 38-kg patient, using a dosage formula of 50 mg/kg/day. assume that the drug is available in a 100 mg per 5 ml suspension or in 500 mg tablets. a. how many tablets should a 38-kg patient take every four hours? b. the suspension with a drop factor of 10 ggt/ml delivers the drug intravenously to the patient over a twelve-hour period. what flow rate should be used in units of ggt/hr? a. the patient should take nothing pills every four hours. (type an integer or decimal rounded to the nearest hundredth as needed.)