Answer:
Multiple of 3 :)
Step-by-step explanation:
(1) let there be x book and let the total cost be y dollars.
y=19.25x+40
y=16x+69.25
(2) 19.25x+40=16x+69.25
3.25x=29.25
x=9
9 silver book, 9 gold book.
(3) y=19.25x+40=19.25*9+40=213.25 dollars
both companies' total cost are 213.25 dollars.
Divide both sides by 5. You get 1/2 or 0.5
The answer is C
4.) 180-25 = 155 a straight line cuts the circle in half (i.e 180 degrees) then subtract out the 25.
