There's an app called photomath that would be useful for these kinds of problems!
um what
sory not understand from finland good luck
Yep, the answer is definitely 13
Q1
Answer:

Step-by-step explanation:

explanation for second step:
you divide each side by 3 to get rid of the '3' in '3x'
The height is 5 m. The area of a trapezoid is (b1+b2/2)h