Answer:
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Explanation:
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Using previously given equation, the estimate of the GPA of a student who studies for 15 hours a week is; 3.1
<h3>How to predict an equation?</h3>
The equation here is probably a "best fit" equation based upon given data which is GPA versus the number of hours of study per week.
Now, the equation of best fit is given as;
y = 0.149x + 0.89
Thus, if the number of study hours of interest is 15, then the GPA is;
GPA = 0.149(15) + 0.89
GPA = 3.1
Read more about equations at; brainly.com/question/1214333
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Blood donation occurs when blood is drawn voluntary from an individual for transfusion.
<h3>
What is Transfusion?</h3>
This is the process of donating blood to an individual and is usually done intravenously.
Before blood donation takes place , necessary tests are usually done to prevent infection and ensure the blood types match to prevent coagulation and death.
Read more about Blood donation here brainly.com/question/13926051

An unsaturated solution is formed when 80. Grams of a salt is dissolved in 100. Grams of water at 40. °c. This salt could be.
Solubility is the maximum amount of soluble solid that can be dissolved in a 100-gram of water at a specific temperature. The solubility of a compound is directly proportional to the temperature which means that more solids can be dissolved at a higher temperature. Moreover, a solution which has a concentration below its solubility is an unsaturated solution. When both concentration and solubility are the same, then the solution is saturated. Lastly, when the concentration of a solution is higher than the solubility at a specific temperature, then the solution is called supersaturated.
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