Which expression represents the phrase "double the sum of 12 and 9"?
2 + 12 + 9
2+(12 + 9)
2 X (12 + 9)
2 X 12 + 9

2x(12+9)

Step-by-step explanation:

its asking for double the sum, so you need to find the sum first, hence the parentheses, then double, adding the 2 to the outsude. this follows PEMDAS

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (

can you rephrase the question ? it is unclear : -)

step-by-step explanation: