Answer:

Step-by-step explanation:
We can solve for x by using 
By applying this on the quadratic equation, we get:

Which simplifies to:


Answer:
.30
Step-by-step explanation:
Purchase Cost = Cost per Portion x Portion Per Purchase
16 oz=1lb
To express 3/13 as a decimal, we divide the the numerator by the denominator. This will give us:
3÷13
=0.23076923
simplifying the above we get:
0.230769...
thus the correct answer is a] <span>a. 0.230769</span>