Jonah earned 150.36 in interest on an account that earns 1.4% simple interest. If Jonah opened the account 12 years ago, what was the principal amount? A) $850
B) $868
C) $880
D) $895
E) $ 902

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Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.