Morgan solved the following equation. equation: 22 - 4) + 2x = x + 7
2x – 8 + 2x = x +7
line 1:
line 2:
4x – 8 = x +7
line 3:
3x – 8 = 7
line 4:
3x = 15
line 5:
x = 5
Which step is justified by the addition property of equality?

A. From the equation to line1
B. From line 1 to line 2
C. From line 3 to line 4
D. From line 4 to line 5

Which strategy is used by public health to reduce the incidence of food poisoning?

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −

The angle of elevation from point a to the top of a cliff is 38 degrees . if point a is 80 feet from the base of the cliff , how high is the cliff ?