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
Answer:
what are the available options then I can answer
Answer:
6x + 3y
Step-by-step explanation:
Multiply 3 by 2x.
Multiply 3 by y.
This is known as the distributive law.
Answer:
x = 1
y = 30°
Step-by-step explanation:
is RS is ⊥ to TU then TS = US so we can use this equation to find 'x':
20x-3 = 5x+12
15x = 15
x = 1
we also know that RS intersecting with TU creates a 90° angle
if 3y = 90 then y = 30
Answer:
Step-by-step explanation:
1. true
2. true
3. true
4. false