Replace, substitute, plug in given values
Answer:
Step-by-step explanation:
m = 5 + 10d
The variable "d" is the independent variable because its value does not depend on another variable. The variable "m" is the dependent variable because its value depends on the value of the variable "d"
Answer:
The other factor is 
Step-by-step explanation:
we know that


In this problem we have

and
-----> because is a factor
substitute and solve for b

so

Verify in the second equation
----->
----->
--> is ok
The other factor is 
Janet is 23, julie is 20, and their brother is 12. 23+20+12=55