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.
Answer:
i pretty sure the answer is y=2+4x
Answer: Minerals range in composition from pure elements and simple salts to very complex silicates with thousands of known forms. The study of minerals is called mineralogy. To be classified as a "true" mineral, a substance must be a solid and have a crystal structure.
Answer:
B) Curve B represents how water takes longer to heat and longer to cool.
Explanation:
Water takes longer to heat and cool than land, you can go swimming in the begging of winter and still have warm pool. Water represents B because it takes so long to heat and cool. This can be proved because it takes longer to heat water than to cook most dry foods in the microwave.
Answer:
Grafting
Explanation:
Tissue culture is the growth of tissues or cells in an artificial medium separate from the parent organism, whereas grafting is a horticultural technique whereby tissues of plants are joined so as to continue their growth together.
This is why the correct answer is grafting :)