Answer:
4
Step-by-step explanation:
5-1=4
it’s basically just any number that can be multiplied with another to get a new expression
The question is, "how many ways ...".
There are as many ways to solve a math problem as you can think of. (Some are shorter or easier than others.)
Essentially, an infinite number.
C = 10d+ 45 ? Hope this helps? Let me know if it’s right or not.