Francesca already has 7 plants in her backyard, and she can also grow 19 plants with every seed packet she uses. How many seed packets does Francesca need to have a total of 45 plants in her backyard?

2 seed packets.

Step-by-step explanation:

19 plants per seed packet.

19+19=38 + 7=45

option 1

data plot with   3 dots over 33, 1 dot over 34, 2 dots over 35, no dot over 36, 1 dot over 37, 2 dots over 38, 4 dots over 39, and 2 dot over 40.