Josh found out that 7 bottle caps weigh exactly one ounce. Josh's entire bottle cap collection weighs 18 pounds exactly. How many bottle caps does Josh have in his collection? Give the rationale and then the answer.
Let's think step by step. Josh's collections weights 18 * 16 = 288 ounces. Josh's collection contains 288 * 7 = 2016 caps.. The answer is: 2016.

Janice bought five juices for $10 in total and two sandwiches for $6 in total. How much would she need to pay, if she would only buy one sandwich and one juice? Give the rationale and then the answer.
Let's think step by step. Janice bought five juices for $10, so one juice costs 10 / 5 = $2. She also bought two sandwiches for $6, so one sandwich costs 6 / 2 = $3. So for one juice and one sandwich, Janice would need to pay 2 + 3 = $5.. The answer is: 5.

Ursula is working at a marketing firm. She created a 30-second long commercial. Her boss told her that this commercial is too long to air and told her to shorten the commercial by 30%. How long will this commercial be after Ursula makes the desired changes? Give the rationale and then the answer.
Let's think step by step. Ursula's boss want's the commercial to be 30 / 100 * 30 = 9 seconds shorter. After Ursula makes the desired changes, the ad is going to be 30 - 9 = 21 seconds long.. The answer is: 21.