Solve the problem.A moving firm charges a flat fee of $45 plus $40 per hour. Let y be the cost in dollars of using the moving firm for x hours. Find the slope-intercept form of the equation.
A. y = 45x - 40
B. y = 45x + 40
C. y = 40x - 45
D. y = 40x + 45
Answer: D
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Solve the problem using two linear equations in two variables and Cramer's rule.Twice the water flow in the hot-water pipe is the same as three times the flow in the cold-water pipe. The combined flow is 1400 liters/hr. What is the flow in each pipe?
A. 700 liters/hr hot, 467 liters/hr cold B. 840 liters/hr hot, 560 liters/hr cold C. 467 liters/hr hot, 700 liters/hr cold D. 560 liters/hr hot, 840 liters/hr cold
Graph the linear inequality.x > 4
A. 
B. 
C. 
D. 
Write in logarithmic form.104 = 10,000
A. log4
= 10,000
B. log10
= 4
C. log4
= 10
D. log10
= 10,000
Supply the missing numbers. Round any decimal to the nearest thousandth and percent to the nearest tenth of a percent if necessary.fractiondecimalpercent?175%
A. 1
; 17.5
B. 1
; 1.75
C. 1
; 1.75
D. 1
; 17.5