Determine the domain and range for the function.
f (x) = x + 7

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

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Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?