Answer:
7/12
Step-by-step explanation:
4 x 3 = 12 (LCD)
3/12 + 4/12 = 7/12
No simplifying done,
7/12 is the answer.
Hope this helped :)
140 / 100 * X = 56
X = 56 * 100 / 140 = 5600 / 140 = 40
You would fill in 9 for x so your equation would be 2(9)+3 and you would then get 21. Therefore the answer is f(x)=21
