Solve.A manufacturer determines that the profit in dollars for manufacturing n units is 
(Assume that n is a positive integer) How many units are produced when the profit is $405?
A. 5 units
B. 50 units
C. 40 units
D. 45 units
Answer: C
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Provide an appropriate response.Suppose that a class of 30 students is assigned to write an essay.1) Suppose 4 essays are randomly chosen to appear on the class bulletin board. How many different groups of 4 are possible?2) Suppose 4 essays are randomly chosen for awards of $10, $7, $5, and $3. How many different groups of 4 are possible?Explain the significant differences between problems 1 and 2.
What will be an ideal response?
Solve the problem.Fred took his mother out to dinner for her birthday. The bill for the food was $70.78, the bill for drinks was $24.22. How much was Fred's 15% tip, rounded to the nearest dollar?
A. $257 B. $11 C. $4 D. $14
Simplify the expression by combining like terms.-0.9y - 1 + 2y - 1.1
A. -0.9y + 2y - 1 - 1.1 B. -1 C. 1.1y - 2.1 D. -1.8y + 1.1
Solve. -8x2 - 16x = 0
A. 0, -2 B. 0, 2 C. 0, 2, -8 D. 0, -2, 8