If a building contractor hires 7 day laborers and 2 concrete finishers, his payroll for the day is $1598. If he hires 1 day laborer and 5 concrete finishers, his daily cost is $1124. Find the daily wage for each type of worker. Solve the problem using matrices.

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation:

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7 hours, 0 minutes, 0 seconds

or:  

0.04

total weeks

or:  

0.29

total days

or:  

7.00

total hours

or:  

420.00

total minutes

or:  

25,200.00

total seconds

step-by-step explanation: