Answer:
b
Step-by-step explanation:
1.44/2.4 • 10^10/10^2
= 6 • 10^7 in scientific notation
Only 25 and 28 are functions.
A function must have only one y value per x value. For 26, the y value of 0 and multiple others have two different y values. For 27, all x values less than 0 have multiple y values.
It will be negative because he has 422 but purchased 484 which is more than he has . so he is a negativge nuber because owns money
