38+3x=89 is the proper way to write this equation.
<em>Now to solve, first subtract 38 from both sides</em> (38-38 and 89-38)
3x=51
<em>Now divide both sides by 3</em>( 3x/3 and 51/3)
x=17
if you mean what is half of 85, it's 42.5
Answer:
1) The rate of change represents the number of stamps she adds each month.
2) The rate of change is 3 stamps per month
3) How many stamps she has in her collection before she starts adding 3 every month.
4) 8 stamps.
Step-by-step explanation:
