Answer:
303
Step-by-step explanation:
add all of them and you get 303, hope this helps :)
I tnjnk is b I'm not sure
55 x -45 multiply to -2475 and add to 10. Good with your assignment!
The formula for the area of a triangle is:

where B is the base of the triangle and h is the height
It appears that the height of the triangle is 5 units (not quite 4.5) and the base is 10 units.
Multiply these to get 50, and divide by 2 to get 25.
The area of the triangle should be
25 u²Hope this helps! :)