Lets solve our system of equations step by step:

equation (1)

equation (2)
Step 1. Replace equation (1) in equation (2)




equation (3)
Step 2. Replace equation (3) in equation (1)



We can conclude that the correct answer is:
<span>
A (−2, −5) </span>
It said the sale earned OVER $25 from selling cookies at $3 dollars each so if we let r=revenue , p=price per cookie and c=number of cookies sold:
pc>r and since p=3 and r=25
3c>25 divide both sides by 3
c>25/3
Since cookies are quantized units, they must be integers so:
c>8 1/3
c≥9 or in interval notation
c=[9, +oo)
500 / 2 = 250 miles per hour ( rate of speed)
250 * 8 = 2,000 miles in 8 hours
Answer:
i don't know lol
Step-by-step explanation:
it would be better to guess