Step-by-step explanation:
Simplify.
<u>Include the exponent:</u>

<u>Use the Distributive Property:</u>

<u>Add and format the trinomial:</u>

Answer:
I choose my choice as A
Step-by-step explanation:
Two times the sum of (x+7) x plus seven plus ten (+10)
Answer:
Step-by-step explanation: multiply the number of books Martina read 3 times.
Chloe this is your math teacher, stop cheating
Answer:
-16y -10
Step-by-step explanation:
So basically, since there are no parentheses, we can use PEMDAS:
y - 9 * y - 8 * y - 10
y - 9y - 8y - 10
-8y -8y - 10
-16y -10