Answer:
864 cards
Step-by-step explanation:
72 cards per set times 15 sets = 1080 cards - 216 cards he already has =864 cards
(2,1) because if you plug in 2 for for X you get 4 if you plug in 1 for y you get 6, 4 + 6 is equal to 10
Answer:

Step-by-step explanation:

Working on the denominator,


Working on the numerator,



Answer:
C
Step-by-step explanation:
x-int is when y=0
when f(x)=0, x=0,-3
A. 0= -x(x-3)
x=0, +3. NOT IT
B. 0= x+(x+3)
2x=-3
x=-3/2. NOT IT
C. 0=x(x+3)
x=0, -3. YESSSSS
D. 0= -x(x+3)
x=0, -3. YESSSSS
Since 0 cannot be neither positive nor negative, both C and D fulfill the first requirement.
but 2nd requirement= f(-1)=-2
C. f(-1)=-1(-1+3)=-1*2=-2 VOILA!!!
C. is the ans.