The first garden has 2 tomato plants because 20 x .1 = <<20*.1=2>>2
The second garden has 5 tomato plants because 15 x (1/3) = <<15*(1/3)=5>>5
She has 7 tomato plants in total because 2 + 5 = <<2+5=7>>7
She has 35 plants in total because 20 + 15 = <<20+15=35>>35
The proportion of tomato plants is .2 because 7 / 35 = <<7/35=.2>>.2
The percentage of tomato plants is 20 because .2 x 100 = <<.2*100=20>>20
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