Answer:
77%
Step-by-step explanation:
30 was 100%
23 is x%
x=23*100/30 = 76.666.. rounded to 77%
23 divided by 30 is 0.766666, which percent-wise is rounded to 77% :)
since 3x^2-7x+4=0 is in the form ax^2+bx+c=0, a=3, b=-7, c=4
