D=# of tickets sold at the door
a=# of tickets sold in advance
3a+5d=2630
d=a+30
3a+5(a+30)=2630
8a+150=2630
8a=2480
a=310
d=340
310 tickets were sold in advance and 340 tickets were sold at the door.
It’s A or D but I have a strong feelin it’s A
Step-by-step explanation:
f(2)= -2×2×2+ 6×2 -7
=-8+12-7
=-3
-2(-2)+3=7
-2(0)+3=3
-2(4)+3=-5
53.778 is the answer. I hope this helps and have a good day!
