Answer:
2.3 is the answer
Step-by-step explanation:
Name the unknown package n
[1.8 + 3.2 + 2.7 + n]/4 = 2.5
[7.7 + n] = 2.5 × 4
7.7 + n = 10
n = 10 - 7.7
n = 2.3
Answer:b and d
A
f(x)=x^2-4x+3
x coordinate: -b/2a
-(-4)/2(1)=4/2=2
and to find the y coordinate just plug in the value of -b/2a for x and solve for y
