Answer:
The minimum number of paintings Monica needs to sell is 4 to reach her goal.
Step-by-step explanation:
Let
p-----> the number of paintings that Monica needs to sell
we know that
[tex]140+15p\geq 200[/tex]
Solve for p
Subtract 140 both sides
[tex]15p\geq 200-140[/tex]
[tex]15p\geq 60[/tex]
Divide by 15 both sides
[tex]p\geq 60/15[/tex]
[tex]p\geq 4\ painting[/tex]
The minimum number of paintings Monica needs to sell is 4 to reach her goal.