Answer: I(x)=12x
Step-by-step explanation:
Let I represent the total money earned
Let x represent the number of toys sold
Since each toy is 12 dollars, then the company will earn 12 dollars for each toy that is sold.
Therefore, the equation is,
I(x)=12x
Let’s use y as a replacement for a number. You would do 3y-7 since you multiply by three and take away seven.

Change x to y, and y to x.

solve for y:

Your answer is:

Answer:
Remember that £ has a greater value compared to $ and vice versa.