Mahmoud and Miriam's recipe uses a ratio of 3 parts pistachios to 1 part walnuts. If their recipe calls for 8 pounds of nuts, how much can they expect to pay, in dollars?

What is the inverse of the function f(x)=2x+1

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.