Factor out the GCF.5x2 + 15x - 20
A. 5(x2 + 3x - 4)
B. 5(x2 + 15x - 20)
C. 5(x2 + 10x - 15)
D. 5x(x + 3 - 4)
Answer: A
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Find the standard deviation for the given data. Round your answer to one more decimal place than the original data.55 12 32 20 18 51 80
A. 32 B. 13,918 C. 24.7 D. 10,260.6
Solve the problem.Assume that the profit generated by a product is given by 
where x is the number of units sold. If the profit keeps changing at a rate of 
per month, then how fast are the sales changing when the number of units sold is 1400? (Round your answer to the nearest dollar per month.)
A. $112,250/month B. $3/month C. $4490/month D. $2245/month
Find all the spanning trees in the graph.
What will be an ideal response?
Solve the problem.Alex has saved $560 at the bank. He wants to accumulate $1750 for a trip to soccer camp. What percent of his goal has been reached?
A. 3% B. 30% C. 32% D. 0.32%