Answer:
3x + 36 for the first question and 2x + 5 for the second question
Explanation:
For the first question, you have to calculate the area of the two rectangles separately and then add them together.
3 · x = 3x
3 · 12 = 36
Add your results together and you get 3x + 36
For the second question, we know Elliot has made 5 dollars more than 2 times how much Bruce has made. Bruce has earned x dollars and we are trying to find out how much Elliot earned.
2 times how much Bruce has made can be represented as 2 · x = 2x
Elliot has made 5 dollars more than 2 times how much Bruce has made so you add 5 to your answer
Elliot has made 2x + 5 dollars