You go to a store and buy a ring for someone and it cost $40 you change your mind and return it and get $50 back you regret your actions and decide to re-purchase the ring but this time it cost $60 your parents are upset that you spend so much money and make you take it back this time you get $70 how much did you lose or make or did you break even enter just the amount you netted

$20

Step-by-step explanation:

Day 1 = $40 ring

Day 2 = you gain $50 meaning you got $10 compensation back

day 3 = $60 you lose your $50 dollars and an added $10

day 4 = you again gain $10 more than what you bought it for adding a $10 compensation

so day one you lost $40

day 2 you gained $50 so saying your bank account is at $0 right now it is at $50

day 3 you loose $60 meaning your bank account is now at -$10

day 4 you gain $70 meaning you bank account is now at $60

you started with $40 and now you are at $60 so you gained $20

1/5^2 = 7.56/45

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.