Answer:
Last choice is correct.
Step-by-step explanation:








Hence final answer is 
Two point one three :)))))))))
Is this really a school question or is it just you being weird?
Answer:
42 * 10 + 42 * 5
which agrees with the third option (C) shown on the list of possible answers
Step-by-step explanation:
Notice that using distributive property we can write:
42 * 15 = 42 (10 + 5) = 42 * 10 + 42 * 5
which agrees with the third option (C) shown on the list of possible answers.