Answer:
1/15 ; 6/90
Step-by-step explanation:

Yes your answers are correct
Answer:
18 cups.
Step-by-step explanation:
Multiply 4.5 by 4.
the expression for 5 less than the product of 2 different numbers can be given as follows:
let one number be x and other be y
product of x and y is xy
5 less than product of xy is xy-5
so final expression is xy-5
Test of congruency could be the reason.