Find the weighted average.A student earned grades of B, B, A, C, and D. Those courses had these corresponding numbers of credit hours: 4, 6, 2, 6, 4. The grading system assigns quality points to letter grades as follows: 
and 
/> Compute the grade point average (GPA) and round the result to two decimal places.
A. 1.45
B. 4.15
C. 10.80
D. 2.45
Answer: D
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Find the area.Find the area of the region bounded by the curve y = 6x-2, the x-axis, and on the left by x = 1.
A. 3 B. 36 C. 6 D. 12
Find the slope and the y-intercept of the line with the given equation.f(x) = 7 - 
x
A. - 
; (0, 7)
B. - 
; (7, 0)
C. 7; 
D. 
; (0, -7)
Convert the units using unit fractions.8
pt = 
c
A. 32 B. 17 C. 16 D. 34
Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by 
where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the hydrogen ion concentration if the 
A. 10-13 B. 0.08 C. 2.56 D. 1013