Tom bought 7 new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there are now only 25 cards left. how many cards did tom start with?

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

the aswere is the one with all 8's and the second one is with the 10,8 and 6

step-by-step explanation: