We have equation:

p = number of phones left to repair
108 = initial amount at the start of week
23 = number of phones repaired each day
d = number of days she worked that week
Expressions are when they don’t have an equal sign
16/32 = P/100
Cross multiply
p(32) = 16(100)
32p = 1600
divide by 32 on both sides
p = 50 %
[15-0] would be a numerical expression for this. :P
Richelle can fold a hexagon in half and if they match up they will be congruent.
all angles would be congruent