Write an numerical expression for "6 times the sum of 4 and 5." A) 4 + 5 x 6 B) 6 x (4 - 5) C) 6 x (4 + 5) D) 6 x 4 + 5

C) 6x (4 + 5)

Step-by-step explanation:

This the only one that makes sense. A doesn't work because of pemdas. You'd have to multiply before adding. B doesn't work because the original problem doesn't call for subtraction at all. And D doesn't work for the same reason that A doesnt.

C) 6 x (4 + 5) because "6 times" is 6 x and then it's "sum of 4 and 5" which is 4+5. You have to put 4+5 in parentheses because otherwise the 6 would multiply with 4