Answer: C
Step-by-step explanation:
im guessing, so if wrong please let me know
Answer:

Step-by-step explanation:
remember when dividing with fractions, you are multiplying by the reciprocal.
this means

Answer:
A. can cause disease
Step-by-step explanation:
Step-by-step explanation:
This solution is reasonable because equal slopes are parallel and negative reciprocals are perpendicular. Four right angles make up a rectangle, and this fulfills it