Answer:
UPS is abbreviation of Uninterrupted power supply. It is a battery backup devices useful when major supply is interrupted due to any reason.
It performs the following functions:
1. It provides protection from power surges.
2. Smooth out noisy power sources
1. x - 6
2. p - ? = 7
i chose these equations because
a number - 6 = the weight of your backpack.
p - an unknown number without a substitute variable = slices of bread left.
Explanation:
its a laptop ☺️. . . . . .. . .
