When shopping, you use a math calculation to see if the price is on sale and how much it costs, and when adding up all the things you bought, by mostly rounding.
Hope helps!-Aparri
Answer:
24. because 2009-2005+20 = 24. hope that helps
steps are to
Combine like terms
Divide both sides of the equation by the same term
simplify
k = -6
Answer: 15
Step-by-step explanation: 2 minus negative 1 is the same as 2+1. 2 plus 1 is 3 and 5 times 3 is 15. Therefore, 15 is your answer.