Answer:
To find the sum of two numbers add them together C:
Step-by-step explanation:
example: the sum of 3 and 4 is 7
the sum means its addition
Answer:
Step-by-step explanation:

Surface area of a cube is n^2, n being the measurment of any one side of the cube. In this case, 13x13=169, so the answer is 169 mL^2.
I would say the graph, only because it is doing run/rise not rise/run
Your answer would be 3 an 3/5 :) hope i helped ! :D:D:D:D:D:D:D