Answer:
(x^87*(x^2+4))/54
Step-by-step explanation:
Z=kx/y
7.9=k11/14
Cross multiply
K11=7.9x14
K =7.9x14/11
K=10.1
........
Z= kx15/22
Z=10.1x15/12
Z=12.625
1 is 6
2 is 3.5
3 is 5
4 is 8.46
if not sorry :-(
y=−x+573, x+y=573