There are 9 days of school left. Cassie has $50. How much money does Cassie's mom need to give her in order for Cassie to spend $6 on lunch for each of the nine remaining school days?  Select the correct option
A) $1 B) $2 C) $4 D) $6 E) $8
For Cassie to spend $6 a day for nine days, she must multiply 9 days by $6 = $54. $54 minus $50 = $4. Hence the answer : $4.
<result>C</result>
There are 9 days of school left. Cassie has $50. How much money does Cassie's mom need to give her in order for Cassie to spend $6 on lunch for each of the nine remaining school days?