Answer:
we use side of triangle to find area and divide by 2 so first one is 15*15+ 8*15/2 225+60=285
68-40=28
28/4=7
therefore, 7 is your answer
(Hope it helps my friend ^_^)
Answer:
what you need help with? there is no picture or question
Step-by-step explanation:
That would be the last choice. Opposite meaning different sign
