Which is the percent for 1.67

Aquadratic function f(x) has a turning point at (3,-7). what is the turning point of -f(x)?

Apackage of bacon holds 15 strips of bacon. the pancake house uses 17 packages of bacon in the morning and 21 packages in the afternoon. how many more strips were used in the afternoon than the morning?

What is the average rate of change for this function for the interval from x=2 to x=4 ?