put an answer but I'm wrong and I don't know how to delete answers, good luck tho
Answer:

Step-by-step explanation:
we know that
The area of the figure is equal to the area of rectangle (figure 1) plus the area of trapezoid (figure 2)
see the attached figure to better understand the problem
The area of the rectangle is

The area of the trapezoid is
](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7D%5B%2815-9%29%2B3%29%5D%288-3%29)
=22.5\ cm^{2}](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7D%5B6%2B3%29%5D%285%29%3D22.5%5C%20cm%5E%7B2%7D)
The area of the figure is

Answer:
The ordered pair is (2,3)
Step-by-step explanation:
we know that
If a system of equations has infinite solutions, then the equations are the same
we have
3ax+3y=5b -----> equation A
2x+y=5 ----> equation B
Multiply equation B by 3 both sides
3*(2x+y)=5*3
6x+3y=15 -----> equation C
Compare equation A and equation C
so
3ax=6x------> 3a=6 -----> a=2
5b=15 ------> b=3
The ordered pair is (2,3)