Solve the problem.The number of gaskets used in a plant is R(x) = 1,100 – 50x, where 1,100 is the number of gaskets in one shipload and x is the number of days after shipment. Orders are made when a 10-day gasket supply is left. How many days after delivery is an order made?

According to the following map, what is the most common mineral resource found in Australia? (2 points)

An island is facing food shortage because its land has become barren due to phosphate mining. A group of people suggested that the island’s crisis could be solved by importing high quality soil to start agriculture. Which of these is the most likely drawback of the plan suggested by the group of people? (4 points)

Which mineral test is shown in the image? (2 points) Public Domain

The residents of a specific location identified and reported a high quality iron ore under the ground in their area. Which of these is the most reliable method to verify the information provided by the residents of the location? (4 points)

A mining company plans to start mining activities in a location having high quality bauxite. The mining company designs a survey to find out if the mining operations would be economically beneficial. The company calculates the costs and earnings listed below. A: Cost of land for miningB: Cost of equipmentC: Cost of laborD: Miscellaneous costs related to miningE: Earnings from selling the resulting mineral Based on the survey, the mining company concludes that it would be economically feasible for them to start the mining operations because E is greater than A + B + C + D. Which of these statements best describes a flaw in the survey? (4 points)

Which of the following is true of all minerals? (2 points)

Which tool would a geologist use to find the color of a mineral in its powdered form? (2 points)

Uranium mining makes extensive use of groundwater to process the uranium. Which of these is the most likely effect of large scale uranium mining in a location which depends on groundwater for its domestic and agricultural needs? (4 points)

Although coal is sometimes considered a mineral, which criteria of minerals does it violate? (2 points)