Question

1+4=5
2+5=12
3+6=21
5+8=____.

Answer 1

Answer:13

Explanation:

Answer 2

Answer:

The answer is 45

Explanation:

$1 \times 4 = 4 \\ {1 + 4 = 5} \\ 2 \times 5 = 10 \\ 2 + 10 = 12 \\ 3 \times 6 = 18 \\ 3 + 18 = 21 \\ \ 5 \times 8 = 40 \\ \\5 + 40 = 45$