Astore is giving away $10 coupons to every 7th person to enter the store and a $25 coupon to every 18th person too emter the store whick person will be the first to get both coupons

Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip

25 ! i need asap! ! ill mark brainliest!

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet