a kilobyte is 210 bytes and a megabyte is 220 bytes. how many kilobytes are in a megabyte?

Jose bought 20 shares of netflix at the close price of $117.98. in a few years, jose sells all of his shares at $128.34. how much money did jose make? a.) $192.50 b.) $207.20 c.) $212.50 d.) $224.60

What is the reflection image of (5,-3) across the line y = -x?

Can someone me and plz do the problem