A. C(n)=10n+125
cost×number of buttons is equal to 10 cents times the number of buttons, plus the $125 cost of the button machine
Answer:
FOIL: 
(3x + 5y)(3x+5y)
F: 3x*3x
O: 3x*5y
I: 5y*3x
L: 5y*5y

Step-by-step explanation:
Answer:
yes it is u are correct
Step-by-step explanation: plz mark brainliest
Answer:
c, vertical
Step-by-step explanation:
blablablablablanlabla
-1/3 . -3/1 = 1
......................