Answer:
8
Step-by-step explanation:
Um... It's none.
Did you took a picture of the wrong question.
The answer of that question is the top second one.
Answer:
z=-3
Step-by-step explanation:
42 = -7z+21
-7z=21
z=-3
Answer:
First break apart 923 into 900+20+3 then do 9 times 900,9 times 20 and 9 times 3. Then add all the products together to get your answer.
Step-by-step explanation:
Answer:
a
Step-by-step explanation: