Answer:
Nutz in my opinion
Step-by-step explanation:
4b²+20b+25=0
Divide everything by 4
b²+5b+ 6.25=0
use the quadratic formula
x= (-b+ or - √b²-4ac) /2a
x= (-5 + or - √5²-4*1*6.25) /2(1)
x= -5/2 so
in this case, b= -5/2
Mr. chang paid the least because 10% off 25 is more than 20%off 30
Answer: If I remember correctly, the answer should be <em>y=-2(3)^x. </em>
1 Backpack + 3 Textbooks + 2 Notebooks = 10.5 pounds
His Backpack Weighs 2.5 pounds
