I think it’s positive. As it gets heavier, the cost has a positive slope, or increases. I’m not absolutely sure though
A^2 - b^2 = (a+b)(a-b)
answer :
t^2 - 1
n^2 - 225
2 * 7 = 14 (the number of tiles for each row) 23 - 14 = 9 (the number of tiles subtracted from how many tiles that are taken away) 9 tiles are in the seventh row.
Answer:4200
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
if we take the 2 that is in the R.H.S and put it in L.H.S
it becomes 16÷2=8
