Answer:
 ON MONDAY:  35 mosquitos.
 ON TUESDAY: 6 flies.
Step-by-step explanation:
 As you can see in the diagram, the frog eats 3 flies for every 7 mosquitoes (for lunch). Then you can expresed this ratio as following:
 3:7 or [tex]\frac{3}{7}[/tex]
 Based on the table:
 -If the frog eats 15 flies on monday, then the number of mosquitos that it eats can be calculated as following:
 [tex]\frac{3}{7}=\frac{15}{mosquitoes}\\\\mosquitoes=\frac{15*7}{3}\\\\mosquitoes=35[/tex]
 -If the frog eats 14 mosquitoes on tuesday, then the number of flies that it eats can be calculated as following:
 [tex]\frac{3}{7}=\frac{flies}{14}\\\\flies=\frac{14*3}{7}\\\\flies=6[/tex]