This one is my real answer 5{10+3]=40 The other one you can use for extra this one 5{10+25]=35
You add all of the numbers up each row and divide by how many there are so:
row one: if u add it all up it would be 10 then divide by how many there are
you're correct. its to take out the greatest common factor.
Answer:
C!
Step-by-step explanation: