X÷(x+15)=x-2÷(x+7) how to solve for x?

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values