(37+29) + T = 66+T minutes practiced Jen is a years old. Her brother is 1 year older. Their mother is 4 times as old as her brother.
Jen's uncle Bob is a years older than her mother. Write and simplify an expression for the age of
uncle Bob in simplest form.
.

0 is its x and y coordinate

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

df =

both have same length