Answer:
Use Sin if Opposite Hypotenuse, Use Cosine if Adjacent Hypotenuse, and Use Tangent if Opposite Adjacent
For discounts multiply the amount by the percentage. Then subtract your product by your amount.
For taxes do the same thing but instead of subtracting add your product to the amount.
A joint relative frequency is found by dividing a frequency that is not in the Total row or the Total column by the frequency’s row total or column total.
Answer:
He would need 
cups of salt.
Step-by-step explanation:
We are given that,
The recipe requires 
cups of flour and 
teaspoons of salr.
As Nick wants to make the recipe using 1 cup.
Let the amount of salt needed = x
The ratio of the flour and salt will be same.
So, we have,
i.e. 
i.e. 
i.e. 
Thus, he would need cups of salt if 1 cup of flour is used.
I am pretty sure the answer is a.
