Answer Happy

Question 1
. If –X>8, then X _____ –8.
>
<
Neither of above.
2 points
Question 2
–X ≤ 0 for all X’s.
True
False
2 points
Question 3
- 2.5 > -1.
True
False
2 points
Question 4
A - (B - C + D) = A - B + C - D.
True
False
2 points
Question 5
Two fractional numbers cannot add up unless _____________________.
they have common numerators
they have common denominators
they are both positive
they are both negative
2 points
Question 6
X+2 > X for all X’s.
True
False
2 points
Question 7
Solve equation 2X+29 = 15 for X. ( That is, calculate thevalue of X satisfying this equation.)
2 points
Question 8
Solve equation 7X + 11 = 2 (X + 13) for X. (That is,calculate the value of X satisfying the equation.)
2 points
Question 9
A store purchases compact disks (CD) from its supplier at $3 perunit, and sells the CDs to its customers at $5 per unit. The storesold 5,000 CDs in last November. The fixed cost of the storeis $4,000 per month.
What is total revenue (sales) of lastNovember in dollars?
2 points
Question 10
A store purchases compact disks (CD) from its supplier at $3 perunit, and sells the CDs to its customers at $5 per unit. The storesold 5,000 CDs in last November. The fixed cost of the storeis $4,000 per month.
What is the total net profit of lastNovember in dollars?