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For the radiograph above, is the image oriented in the correct direction?

Which tooth is starred?

For the image below, what is the view?

Your friends are looking at these three bars and they want to know which one is the “healthiest” and why.  What would you say?  Remember that you are addressing people who are not scientists, and also who all have different bodies with different genetics.

How many different amino acids does the human body use?

Use the order of operations to simplify the expression.    ***Complete and correct step by step work must be shown on paper with ANSWER BOXED IN.  Then upload picture of work for me to grade (must be jpeg or pdf file upload).102 – 4 ∙ 9

Use the order of operations to simplify the expression.3[-6 + 7(-3 + 6)]

Use the order of operations to simplify the expression.    ***Complete and correct step by step work must be shown on paper with ANSWER BOXED IN.  Then upload picture of work for me to grade (must be jpeg or pdf file upload).102 – 4 ∙ 5

Factor completely.      ***Complete and correct step by step work must be shown on paper with ANSWER BOXED IN.  Then upload picture of work for me to grade (must be jpeg or pdf file upload). 5×2 – 5x – 30

Factor out the GCF from the polynomial.      ***Complete and correct step by step work must be shown on paper with ANSWER BOXED IN.  Then upload picture of work for me to grade (must be jpeg or pdf file upload).42x4y + 30xy6