Solve the problem.Total profit is defined as total revenue minus total cost. R(x) and C(x) are the revenue and cost from the sale of x televisions. If 
and 
find the profit from the sale of 80 televisions.
A. $25,520
B. $7120
C. $19,120
D. $13,520
Answer: B
Mathematics
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Simplify.240 ÷ 5 - 3
A. 120 B. 45 C. 232 D. 238
Mathematics
Graph the decimal on a number line.11.75
A. 
B. 
C. 
D. 
Mathematics
The two triangles below are similar. Find the missing length or lengths.
A. 45 B. 34 C. 36 D. 28
Mathematics
Find the derivative.y = 5x2 - 2.1x
A. 
= 10x2 - 2.1
B. 
= 10x - 2.1
C. 
= 5x2 - 2.1
D. 
= 5x - 2.1
Mathematics