Assignment:
Q1) Richard's GPA is 3.7, and he made the following statement recently, "I have earned 110 credits from my college, and I earned at least an A- in each case." An A is equivalent to 4.0 and an A- is equivalent to 3.67. How many of the credits were A, and how many of the credits were A-?
Assume x is number of credits of A, and assume y is the number of credits of A-:
Q2) Find the equation of the line that contains (0, 4) and perpendicular to y= 1/2x+2
Q3) David is planning to sell his house which he bought in 1997 for $150,000, and he wants to make at least $80,000. The realtor's commission is 7% of the sale price of the house. What is the minimum sale price he should set for the house?
Assume x is the minimum sale price he should set for the house.
Provide complete and step by step solution for the question and show calculations and use formulas.