19. The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 95-99*
Scores
40-59
60-75
76-82
83-94
95-99
Number of students
2.
4
6
15
5
a. 94.5, 100.5
b. 95.5, 100.5
c. 95.5, 99.5
D.94.5, 99.5

The green family is a family of six people. they have used 4,885.78 gallons of water so far this month. they cannot exceed 9,750.05 gallons per month during drought season. write an inequality to show how much water just one member of the family can use for the remainder of the month, assuming each family member uses the same amount of water every month.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.