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 ∙ 5

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

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

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).x2 + 11x + 18

Find the sum without the use of a number line.8 + (-12) + (-8)

Now you must go to the “Midterm Exam Work Upload” assignment to submit your step by step work for this exam.  Step by step work for each problem must be submitted.  There must be correct work to support correct answers in order to earn credit.  

Use the order of operations to simplify the expression.60 ÷ 15 ∙ (-5)

Find the product.(8x – 1)(x2 – 6x + 1)