Answer:
the proportion is false
Step-by-step explanation:
5.5/7.5 = 11/15
3.5/7= 1/2
2 3/4 i believe, hope this helps
Answer:
Gah! Inverses!
Step-by-step explanation:
This is a pretty simple concept, just switch the x and f(x) values!
If you don't understand, look at how I solve it!

Switching the positions of the x and f(x) values...

Note: That f(x)^-1 is the proper notation for inverse functions.

There you go!
Hope this helps, and don't procrastinate!
4 and 7. 4×4 is 16. 7×7 is 49. 49+16=65
6/100+11/100+19/100= 36/100. 36/100 in simplest form is 9/25