#!/usr/bin/env python3

import numpy as np

celsius_temps = np.array([70, 75, 80])
fahrenheit_temps = (celsius_temps * 9/5) + 32

print(fahrenheit_temps)  # [158. 167. 176.]


revenues = np.array([1000, 1500, 800, 2000, 1200])
costs = np.array([600, 900, 500, 1100, 700])
tax_rates = np.array([0.15, 0.18, 0.12, 0.20, 0.16])

gross_profits = revenues - costs
net_profits = gross_profits * (1 - tax_rates)

print(net_profits) # [340. 492. 264. 720. 420.]