Equation parallel to y = -x is y=-x+k
so 4.5 = -7 + k so k - 11.5
Equation is y = -x + 11.5
Answer: -2 and -7 i think
I don’t know if this is correct but about 4 times because
3/4 -> 18/24 and 1/6 -> 4/24
This is the answers:
20: 6.9/7
21: 6.36/6
22: 6.24/6
23: 9.1/9
24: 4.6/5
25: 5.8/6
26: 9.3/9
27: 4.12/5