It would help if we were able to see the previous exercises to help you with these.
Answer:
1/y+4
Step-by-step explanation:
1-5+1/y+8
1/y+(1-5+8)
1/y+4
Answer:
It is decreased by $80,000
Step-by-step explanation:
Answer:
? = 1 (assuming right-angled triangle)
Step-by-step explanation:
This is an application of Pythagoras' Theorem, but rearranged:

is, of course, 10, so 10 - 9 = 1, and
.