1. keisha needs to make at least 28 costumes for the school play. since she can make 4 costumes each week, keisha plans to work on the costumes for at least 7 weeks.

2. if keisha has to have the costumes complete in 10 weeks or fewer, how will our solution change?

for each question, write an inequality. then, graph your solution.

1. Let n represents the number of weeks she needs to make at least 28 costumes,

Since, she can make 4 costumes each week,

i.e. In number line closed circle on 7 and shaded right from 7.

2. If the maximum time taken by her is 10 weeks,

⇒ n ≤ 10 ----(2),

From equation (1) and (2),

I.e. closed circle on both 7 and 10 and shaded right from 7 and shaded left from 10.