Add.
(3t - 3) + (6t2 + 4t + 13) + (-8t2 + 11t - 1)?

Step-by-step explanation:

the expression we have is:

the first step is to get rid of the parentheses:

an now, we put the like terms together, this will be subtract

, and the result is

and then add:

which results in

and finally add all the independent numbers:

which is equal to

so the total result is:

b

step-by-step explanation:

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half