The answer choice is B I just took
Answer:
x=12
Step-by-step explanation:
(9x-4)+(5x+16)=180
14x+12=180
-12 -12
14x=168
then devide both sides by 14
x=12
The full answer is 20.125 but it says to round so the answer is C. 20.13
9514 1404 393
Answer:
255
Step-by-step explanation:
The factorization of 50 is 2×5×5. The sum of these factors is 12, so these are the digits of interest. Arranged with 5 as the leading digit, the number is not less than 500, so 2 must be the leading digit.
The mystery number is 255.