Hey there! I'm happy to help!
We have the number -28 and we are subtracting 3 from it. This means we are going even further into the negatives, so it is -31.
Have a wonderful day! :D
Answer:

Given:

Step-by-step explanation:
Two Angles are Complementary when they add up to 90° (a Right Angle).

Answer:
A=hbb/2 hope this helps :)
Step-by-step explanation:
Find the area of a triangle with base of 6 m and altitude of 4 m.
12