Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.A $320.00 dress is on sale for 40% off. Find the discount and the sale price.
A. discount: $12.80; sale price: $192.00
B. discount: $128.00; sale price: $192.00
C. discount: $12.80; sale price: $3072.00
D. discount: $128.00; sale price: $3072.00
Answer: B
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Graph the circle.x2 + y2 + 2x + 6y - 6 = 0
A. 
B. 
C. 
D. 
Graph the solution of the rational inequalities on a number line and write the solution in interval notation. 
> 0
A. (-2, 0]
B. (-?, -2) ? (0, ?)
C. (0, ?)
D. (-?, -2] ? [0, ?)
Solve the linear equation symbolically.-10 + 10y + 30 = 4(2y - 10) - 12
A. 36 B. -4 C. 4 D. -36
Solve the problem.A retailer knows that n games can be sold in a month at a price of 
dollars per game. Assume that he buys each game for 
and sells every one that he buys. If he wishes to make a profit of at least 
per month on sales of this game, how many games must he sell each month?
A. 25 ? n ? 35 B. 20 ? n ? 50 C. 20 ? n ? 70 D. 0 ? n ? 20