Let h(x)=2x−5 and g(x)=−3x+1.Find h(x)+g(x).? help please

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

How to do this , and can some one explain

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18