Answer:

"Multiply the sum of 3 and 10 by 6"

First, we have to translate it into a mathematical phrase, which will be:

(3 + 10) × 6

Second, do the operation by adding and:

(3+10) × 6

13 x 6

Lastly, multiply:

13 × 6

= 78

Tada!! The answer is 78.

Since there is no 78, in the choices given. Please kindly tell to your teacher, thank you.

I hope it helps :).