Answer:
17
Step-by-step explanation:
If Olga collected 13 and Katrin 4, to "collect all together " means to get the sum, so you add 13+4 hence giving you 17
17 seashells
13+4=17
I hope this works :)
y = -2/3x + 5 or A.
cant be solved, when you try to you get
-1+78 = 77
which is
77 = 77
1=1
So cannot be factored
