4+13= 17
4/13=0.307
4x13=52
4-13=-9
Answer:

Step-by-step explanation:
Q) 5 × (4/9) = ?
→ (5 × 4)/9
→ 20/9

The percent increase in the iron was 50%. 1.2/2 = .6 1.2 + .6 = 1.8
So you basically have to divide 1.4 on both sides so you can get y by its self. Once you divide 60 by 1.4 you’ll get 50.
y=50