By what percent will a fraction change if its numerator is decreased by 60% and its denominator is decreased by 20%? PLEASE HELP ME!!!

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.