Answer:
Your answer is correct
Step-by-step explanation:
Indeed subtracting 5 from both sides would be n/-3> -1
Multiplying both sides by -3 would give you n < 3 (obviously after reversing the inequality sign)
Answer:
13 seconds.
Step-by-step explanation:
Given

Required
Determine a reasonable solution for t
To do this, we equate h to 0.
becomes

Divide through by -4.9

Reorder the expression

Split
or 
This gives:
or 
But time can't be negative, So:

Answer:
7/6
Step-by-step explanation:

x-intercept(s):
(
7
,
0
)
, (-1,0)
y-intercept(s):
(0,-7)
Step-by-step explanation: