Step-by-step explanation:
let f(x)=y
y=7x-13
y+13=7x
y+13/7=x
f-1(x)=x+13/7
Answer:
1. 4
2. 100
3. 112
4. 8/20 or 2/5
6. 135/4
Step-by-step explanation:
Answer:
Bend down
Step-by-step explanation:
Bebebe
5/9 = 10/18
Therefore no, 7/18 is smaller than 5/9