Question

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

Answer 1

c. 2x (12 + 9)
hope it’s helps

Answer 2

2x(12+9)

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