Please help me, 7th grade math

you can use a calculator

Step-by-step explanation:

1. 59.40

Step-by-step explanation:

A discount is a reduction of the basic price of a good or a service. It can occur on any stage in the process of production or sale - suppliers can put a commercial discount on material prices, or retailers can put a bright red tag that says 15% OFF! on a piece of clothing.  Discounts are often made to prompt sales of outdated stock, reward customers, attract attention or increase profits in the short term.  Oftentimes, we as customers fall into the trap of impulse buying tempted by a discount percent. However, more often than not we lose money, rather than save when we indulge in shopping by buying unnecessary goods prompted by the promise of a lower price.

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just sum

10 + 10 = 20