I got K=0
I think I might have gotten that wrong id.k- if it is jus let me know and you can delete this answer! Sorry if its not right :')
Step-by-step explanation:
Hope this helps, have a great day :)
a28=58
step-by-step explanation:
a1=a1+(n-1)d
a28= 4+ (28-1)2
a28=4+(27)(2)
a28=4+54