John buys a gaming PC for $1200. He decides to replace the video card in it. He sells the old card for $300 and buys a new one for $500. How much money did he spend on his computer, counting the savings from selling the old card?
Let's think: He spent an extra 500 - 300 = $200 on the video card. That means the total cost was 1200 + 200 = $1400.. The answer is: 1400.

Laura is planning her wedding. She expects 220 people to attend the wedding, but she has been told that approximately 5% typically don't show. How many people will go to her wedding?
Let's think: Laura expects 100 - 5 = 95% to show up. Laura expects 220 * 0.95 = 209 guests.. The answer is: 209.

Melody planted sunflowers from two different seed packets. She found that the sunflowers from Packet A were 20% taller than the sunflowers from Packet B. If the sunflowers from Packet A were 192 inches tall, how tall were the sunflowers from Packet B?
Let's think: The height of the sunflowers from Packet A is the same as the height of the sunflowers from Packet B + 20%. If Y represents the height of the sunflowers from Packet B, Y + 0.20Y = the height of sunflowers from Packet A. We know the height of the sunflowers from Packet A is 192 inches = Y + 0.20Y or 1.2Y. To figure out Y, we would divide both sides of the equation by 1.2, like this: 192 / 1.2 = 1.2Y / 1.2 or 160 = Y.. The answer is: 160.

Roberto recently received a 20% raise from his previous salary, which was already 40% higher than his starting salary. If Roberto's starting salary was $80,000, what is his current salary?
Let's think:
Roberto has received 2 raises. On his first raise he received a 40% bump, therefore his new salary was $80,000 * 140% = $112,000. On his second raise, Roberto received a 20% bump, therefore his current salary is $112,000 * 120% = $134,400.. The answer is: 134400.