Which expression gives the perimeter of the regular heptagon shown below?

Answer: b
7x
explanation: you would normally add x seven times but 7x is a similar way doing it.
ex) 7x x=4
7 times 4 equals 28
(it is the same as)
7+7+7+7

Bwould be the answer

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.