i will mark brainliest!

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Flowers:   1     2     4     3

Petals:      5   10    20   15

We can look at the first term in the table to determine the ratio:

1 flower : 5 petals

5 petals for every flower

Use this pattern to complete the rest of the table:

2 flowers : 2 × 5 = 10 petals

4 flowers : 4 × 5 = 20 petals

x flowers : 15 petals --> 15 ÷ 5 = 3 flowers.

The ratios are:

Flowers:   1     2     4     3

Petals:      5   10    20   15