Answer:
Here you go.Hope this help!!
Answer: 78.02 cm²
Step-by-step explanation:
1. To solve this problem you need to apply the formula for calculate the area of a rectangle, which is shown below:

Where
is the area of the rectangle,
is its lenght and
is its width.
2. You know that the rectangle has a length of 9.4 cm and a width of 8.3 cm, therefore, you must substitute these values into the formula. Then, you obtain the following result:

Do the vertical line test
16. Function
17. Not
18. Not
19. Function
Answer:30$
Step-by-step explanation:
You make it