Question 21419
Her grade is : how many out of a hundred?
So, let x be her grade
x / 100 = 29 / 30
multiply both sides by 100
{{{x = (29/30)*100}}}

without algebra, just divide 29 by 30 using long division.
you'll get .907. to get the grade, move the decimal point
over to the right 2 places. Now you get 96.7 This is the 
grade, but you want to round it off to the nearest
whole number. 97 is the answer. Hope this helps.