X^4 - 5x^2 - 36 = 0
(x^2 - 9)(x^2 + 4) = 0
(x-3)(x+3)(x-2)(x+2) = 0
x = -3, -2, 2, 3
It was $6.00 per pound. So 2 pounds would be $12. But there is still that .6 of a pound left. If we know 1 pound costs $6, then we know 1/10th of a pound will cost $0.60. So 6 x .60 = 3.60. Add 12 and 3.60, and you get 15.60 for 2.6 pounds of granola at the old price.
The seedling grew 1 1/6 inches or approximately 1.16 inches. 1/3 is equal to 2/6, 2/6 + 5/6 = 7/6
7/6 = 1 1/6
The answer to the problem is approximately 19 liters
Let's assume the number of students in the class be x.
Given that, Two-thirds of students in a class are girls.
So, number of girls 
Now ne-half of the girls wear glasses. So, one-half of 
is
= 
=
Cancel out 2 from both numerator and denominator.
So, one third of the students are girls who wear glasses.
So, the correct choice is E.
