Joaquin has d more than three times the number of baseball cards as Sam. Sam has f baseball cards.​

Yo need asap pls ! markin da brainiest too !

If a sprinkler waters 1 over 12 of a lawn in 1 over 2 hour, how much time will it take to water the entire lawn? (5 points) 10 hours 6 hours 1 over 6 hour 7 over 12 hour

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2