8m+3n-4m+7n help please

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

Average acceleration: i have no idea how to do this.

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.