A cell phone plan costs 29.99 a month and includes 250 local minutes. Each minute over 250 costs the customer 0.15, and roaming costs an additional 0.45 a minute. A customer used his cell phone 280 minutes last month, 65 of which were made outside of the home coverage area. If taxes at 12 were added to the bill, how much was the customer's cell phone bill last month?
Question 2
Tina can rent a nail gun for 13.75 a day or buy it for 134.99. How many days of renting will it take for the rental cost to equal or exceed the purchase price?
Proteomes and their relationship to cell structure, function, and organization.
The effects of germ-line versus somatic cell mutations.
Body plan of an arthropod, as represented by a grasshopper
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Color-enhanced electron micrograph of E. coli undergoing cell division
A truncated cell lineage chart for C. elegans