1. 23% decrease b=
a)0.77
b)0.23
c) 1.23

2. 8% increase b=
a)0.8
b)1.08
c) 0.92

3. 15% decrease b=
a) 0.85
b)0.15
c)1.15
4. 120% increase b=
a) 1.2
b) 0.2
c) 2.2

What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?

Ken earned $128 from his part-time job this summer. he spent 25% of his money on games. he is going to donate 1/6 of the remaining money to charity. how much money will the charity receive?

Determine whether the question is a statistical question. explain. 1. what is the eye of sixth grade students? 2. at what temperature (in degree fahrenheit) does water freeze? 3. how many pages are in the favorite books of students your age? 4. how many hours do sixth grade students use the internet each week? you!