Answer:
Option D. minimum value at −38
Step-by-step explanation:
we have

Let

Complete the square




------> equation of a vertical parabola in vertex form
The vertex is the point 
The parabola open upward-----> the vertex is a minimum
therefore
minimum value at −38
# 3 is .4 because u multiply .2*.2
Answer:
x = 2
Step-by-step explanation:
The number 0.7 is a rational number. Hoped this helped