27+22=49
so your question doesnt really make sense, can u re-word it and make sure your problem is correct
Answer:
Rock layers only (I think this is correct from the searches I've made)
First think out the equation, once you've done that multiply 3 by 25 to get 75
1 + 1= 2
2 + 2 = 4
3 + 3 = 6
4 + 4 = 8
5 + 5 = 10