At BBQ Shack they only sell ribs, the cost of a half rack x is $10 and the cost of a full rack y is $20. The manager's goal for the day is to have at least 25 customers buy ribs, and to have
total sales be greater than $300. Write a system to represent this situation.

300=10x+20y

Step-by-step explanation:

You are trying to get the sales to equal 300 so the 10x and 20y added together will get you 300

question is incomplete.

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt