Y = 12x......y = 12(4).....y = 48.....so she pays $ 48 for the old brand when buying 4 boxes
y = 8x...y = 8(4)......y = 32...so she pays $ 32 for the brand she changed to, when buying 4 boxes
so the super saving brand would save her (48 - 32) = $ 16 per month
40 dollars per 5 students=9 dollars per 1 student
divide both sides by 5.
Answer:
-60% decrease
Step-by-step explanation:
60 is the old value and 24 is the new value.
percent change = 
x 100%
so for this problem, you can substitute the values given in the formula:
percent change = 
x 100% = 
x 100% =
-60% (decrease)
Answer:
Slope=1
Step-by-step explanation:
I don't know the y intercept sorry
