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A tree farmer plants five new trees on his farm at the end of each month. Let an​ denote the total number of trees he has after n months. Initially, he has a0=50 trees. a) What is a10​? [4 Points]   b) If the farmer spends $3 per month to maintain each tree, what is the total maintenance cost he has paid after 1 year (12 months)? Provide the closed-form mathematical expression for this amount (do not calculate the actual value).(Assume that he starts maintaining trees at the beginning of each month and includes all existing trees for that month.) [6 points]  

Suppose you have a sorted array of integers (3,7,12,15,18,21,27,33,39,42,50) and you want to implement the binary search algorithm given below to find the index of a target value x. For each target value x given below, give the values for variables low and high for each call to Binary Search. Then give the final return value.    a)  x=12 b) x = 32

Which of the following is a sign or symptom of meningitis?

The most common infectious disease in humans is ______.

One way to prevent infant botulism is to coat pacifiers with honey, as honey has antibacterial properties.

As a nurse, you must teach your patients about control and management of their diseases as well as the facts of the disease-risk, treatment, symptoms, etc. How might you instruct a patient who has West Nile virus to avoid the infectious agent in the future?

Some forms of blindness result from a reactivation of HSV-1 virus, the usual cause of cold sores.

The primary preventative mechanism of a Diphyllobothrium latum infection is:

When a patient experiences a sudden, violent onset of gastrointestinal symptoms within a short incubation period, microbial infection is typically suspected.

Subacute sclerosing panencephalitis is caused by a prion.