For large parties, a restaurant adds a 15% service charge to the bill. how much would be added to a bill of $638.40?

Service charge  added to a bill of $638.40 is $95.76 .

Step-by-step explanation:

As given

For large parties, a restaurant adds a 15% service charge to the bill.

Bill of the parties  is  $638.40 .

15% is written in the decimal form

= 0.15

Thus

Service charge = 0.15 × Bill of the parties .

                          = 0.15 × $638.40

                           = $ 95.76

Therefore service charge  added to a bill of $638.40 is $95.76 .

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

answer is 12345678900987654321234567890987654321

step-by-step explanation: