Answer:

Step-by-step explanation:
See attachment for complete question


From the question, we understand that one shrub must be at both ends.
Taking the first as a point of reference, we're left with:

Substitute 10 for n and d for distance



Hence:
answers the question
For this case we must represent the following expression algebraically, in addition to indicating its result:
"2 plus 9"
So, we have:

By law of the signs of the sum, we have that equal signs are added and the same sign is placed:

ANswer:
11
The equation would be Y=3X+7. If you have any questions, please ask.
-10 - (-8) + (-4) - 20
When subtracting a negative, you add the number.
When adding a negative, you subtract the number.
-10 + 8 - 4 - 20
Do addition and subtraction from left to right.
When adding a negative to a positive, keep the sign of the larger number.
When subtracting from a negative, you add the numbers together and keep the negative sign.
-10 + 8 - 4 - 20
-10 + 8 = -2
-2 - 4 = -6
-6 - 20 = -26