Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.

7 * 5 * 4 * 2 * 3 * 7

Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter cluster.

COMFORT : FMOCTRO :: DIGNITY : NGIDYTI :: FOREIGN : ?

Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.

L _ _ RALMT _ _ _ _ TRALM_ R _

Which of the answer figures is the exact mirror image of the given problem figure when the mirror is held at the right side?

Problem figure: