Answer:
5. a) |-4| = 4
b. |4| = 4
c. -(-4) = 4
d. -(4) = -4
6. The numbers for quadrants are expressed in Roman numerals. There are 4 quadrants in the coordinate plane: I (1), II (2), III (3), and IV (4)
+ --> Positive Number
- --> Negative Number
Quadrant I is (+, +)
Quadrant II is (-, +)
Quadrant III is (-, -)
Quadrant IV is (+, -)
a) Quadrant III
b) Quadrant IV
7. a) 58
b) 58.5
c) 58.48
You also might want to check the other problems in this picture. 2 and 15 are also factors of 30. 30 in its prime factored form should be 3 * 5 * 2. 3 * 5 * 5 is 75, not 30. For #4, the order is -2, -0.5, 0, 1.25, 1.5.