Answer:
280cm squared
Step-by-step explanation:
By adding a 2cm wooden board, Gavin is adding 4 cm to each side, os the new sides would be 14 and 20. 14*20=280 cm squared.
Answer:

Step-by-step explanation:
a is the height
b is the base
c is the hypotenuse
I'm not sure about my answer,but still writing it...
= ³√4a⁶ - 2/a-³ - (a²)3/2
= a² × ³√4 - 2a³ - 3a²/2
Cann't think that it could be futher more evaluted
I can't make a tree diagram via computer but when I get home I can get to my phone and send you a pic of one but their's a total of 4 outcomes that's just one of the possibilities out of those 4 so it would be A) YW :D
the common difference is two of course