What is the paraphrased or summarized of "a friend is not the shadow that mimics you, but the one who casts all shadows away."by shannon l. alder?

Jess wanted to save money to buy a new outfit. jess saved $27.40 in june, $28.90 in july and $21.10 in august. however, she also had to spend $21.60 on school supplies and $45.10 on her dog. if the outfit costs $106.80, how much money does jess still need to save