What is the vertex of x^2 -10x + 21

How far is x from 5 on a number line?

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

What number can each term of the equation be multiplied by to eliminate fractions before solving ? 6-3/4x+1/3=1/2x+5