Cheryl is signing up for a golf tournament that costs 20% more than her monthly cell phone expenses to enter the tournament. If Cheryl spends $400 more on her monthly cell phone expenses than on the electricity bill, which costs $800, calculate the total amount she pays upon signing up for the golf tournament. Give me reasons, before answering the question
If the electricity bill costs $800, and Cheryl spends $400 more on her monthly cell phone expenses than on the electricity bill, she pays $800 + $400 = $1200 on cell phone expenses. Since the cost to enter the tournament is 20% more than Cheryl's monthly cell phone expenses, to enter the tournament, Cheryl has to pay 20 / 100 * 1200 = $240 more than her monthly cell phone expenses. The total cost of joining the golf tournament is $1200 + $240 = $1440. So the final answer is 1440.