Answer:
[tex]\$46.40[/tex]
Step-by-step explanation:
step 1
Find out the price of 160 begonias, if she bought them separately
[tex]160(\$1.79)=\$286.40[/tex]
step 2
Find out the price of 160 begonias, if she bought them by the flat
Remember that
One flat are 20 plants
so
For 160 plants are needed
160/20=8 flat
[tex]8(\$30)=\$240[/tex]
step 3
Find out the difference
[tex]\$286.40-\$240=\$46.40[/tex]