Incomplete question. The complete question reads;
Sales promotion types: (i) Coupon, (ii) Premiums, (iii) Contests, (iv) Sweepstakes, (v) Samples, (vi) Loyalty Programs, (vii) POP Displays, (viii) Rebates.
The items are -Buy 9, get the 10th one free, -50-yard dash around the store, -Win a trip to the Olympics, -Free keychain, -20% Off Samples, -Ride the bike around the lot, -Cash register, -Mail-in for $20 off
Step-by-step explanation:
(i) Coupon ⇒ -20% Off Samples
(ii) Premiums ⇒ -Mail-in for $20 off
(iii) Contests ⇒ Win a trip to the Olympics
(iv) Sweepstakes ⇒ -20% Off Samples
(v) Samples ⇒ Ride the bike around the lot
(vi) Loyalty Programs ⇒ Mail-in for $20 off
(vii) POP Displays ⇒ -Cash register
(viii) Rebates ⇒ Buy 9, get the 10th one free