Two traffic signal systems are being considered for an intersection. One system costs $32,000 for installation and has an efficiency rating of 78%, requires 28 kW power (output), incurs a user cost of $0.24 per vehicle, and has a life of 10 years. A second system costs $45,000 to install, has an efficiency rating of 90%, requires 34 kW power (output), has a user cost of $0.22 per vehicle, and has a life of 15 years. Annual maintenance costs are $75 and $100, respectively. MARR = 10% per year. How many vehicles must use the intersection to justify the second system when electricity costs $0.08/kWh?

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A company wishes to produce two types of souvenirs: Type A and Type B. Each Type A souvenir will result in a profit of $0.80, and each Type B souvenir will result in a profit of $1.00. To manufacture a Type A souvenir requires 2 minutes on Machine I and 1 minute on Machine II. A Type B souvenir requires 1 minute on Machine I and 3 minutes on Machine II. There are 2 hours available on Machine I and 5 hours available on Machine II. (a) For a meaningful solution, the time available on Machine II must lie between   and   min. (Enter your answers from smallest to largest.)(b) If the time available on Machine II is changed from 300 min to  (300 + k) min, with no change in the maximum capacity for Machine I, then Ace Novelty's profit is maximized by producing         Type A souvenirs and         Type B souvenirs, where     ≤ k ≤ .(c) Find the shadow price for Resource 2 (associated with constraint 2). (Round your answer to the nearest cent.)$

B,C,D please and make sure to check ur answer