Answer:
21
Step-by-step explanation:
27÷3 is 9 and 21÷3 is 7
(6,18)
(2, -39)
f(x)=-3(x+2)^2+9
f(2)=-3(2+2)^2+9
f(2)=-3(4)^2+9
f(2)=-3(4)(4)+9
f(2)=-3(16)+9
f(2)=-48+9
f(2)=-39
Answer
Letter B
Step-by-step explanation
x=10 because
2x{ 10}+ 3 =23
X{10} + 4= 14
23+ 14= 37
