Answer:
Step-by-step explanation:
It is already in standard form and can be expressed in scientific form as:

Answer:
i think its D dont fullly take my word tho
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Perpendicular lines have slopes that are negative reciprocals, so as the slope of the given line is -5/4, the slope of the perpendicular line is 4/5.
Substituting into point-slope form,

Answer:
x = -2
Step-by-step explanation:
2x + 1 + 3 = 0
2x + 4 = 0
x = -2