398÷4= 99.5
$398 is your total
C=Cost of glasses(99.50)
X=Pairs of Glasses(4)
The answer is <u>C</u> because c equals 99.50, X equals 4.
I dont know if you can understand this is the best way that I can show u!
The answer is 5! Hope this helps!
The answer is D, (2,2). A vertex is where a line or curve meets and changes direction.
I don't think you use a fraction. You multiply .6666 by 72 which equals 47.9952 or rounded 48. :)