Answer:
t = -1
Step-by-step explanation:
6t + 5t = -11
11t = -11
t = -1
For this case we have the following functions:

By definition we have to:

Substituting:

The range of the function is given by all values of "and" valid. That is, all the real numbers.
ANswer:
(-∞,∞)
Graphic attached
Factor:
<span>30n - 40 = 10(3n - 4)
hope it helps</span>
0.25 in a fraction would be 1/4