<u>answer</u>:
sale price: $5
<u>explanation</u>:
total price is always 100%
sale price is 80% off,
sale price: 100% - 80% = 20%
<u>solve</u>:
→ 20% * $25
→ $5
Answer:
2x + 5y + 28 = 0
Step-by-step explanation:
since they are perpendicular,
m1 ×m2 = -1
5/2 × m2 = -1
m2 = -2/5
now,
y -y1 = M (x-x1)
y - (-4) = -2/5 ( x - (-4) )
y +4 = -2/5 ( x + 4 )
5 ( y +4 ) = -2 ( x+4)
5y +20 = -2x - 8
2x + 5y +20 + 8 =0
2x + 5y + 28 = 0
Answer:
no
Step-by-step explanation:
