yes just do everything and study and u'll do fine :)
Answer:
-0.3n + 0.6
Step-by-step explanation:
if we write out the entire expression we have:
0.5n - 0.3 - 0.8n + 0.9 (two negative signs create a positive sign)
then we add and subtract
and receive
5.3
19/25
so a=36, b=3, c=5, d=540
