Explanation : x = 79 marks
The marks scored by Mike on four math test are 88,91,75 and 72.
Average of marks, A = 81
Let in fifth test he scores x marks.
The formula for finding average is :




In the fifth test he scores 79 marks.
Hence, this is the required solution.
A sample citation of sources using the MLA citation methods is Author(s).<em> "Title of Article." Title of Periodical, Day Month Year, pages.</em>
<h3>What is a Research Paper?</h3>
This refers to the expanded essay that is written in order to find answers to research questions in an academic writing format.
Hence, we can already see that a list of reliable sources has been mentioned already and the important questions to ask when using sources for a research paper.
Therefore, we can see that when using Modern Language Association (MLA) citation methods, one should place the name of the author(s) in alphabetical order, then the title of the article, day, month, and year, then the pagination.
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Answer: The endocrine system sends chemicals called hormones through the bloodstream to change short-term and long-term activities in the body
Explanation: Endocrine system is a system made up of glands that produce and secrete chemical signal called hormones which travel through the bloodstream to the target cell where they exert their effects.
A hormone is a chemical messenger secreted by an endocrine gland. Long-term activities in the body influenced by hormones include growth and development.
False because wen metamorphic rocks form they change there shape and they ether get bigger or smaller
Answer: Primary Sex characters
Explanation:
The primary sexual characters are associated with the growth of sexual organs such as uterus, vagina, penis and other reproductive organs in the human beings.
These organs are present in the body when the child is borne. This is because they grow when the child is inside the womb.
The development and maturation of these organs takes place during the later stages of life.