Solve the problem.Sketch a graph that depicts the amount of water in a 50-gallon tank. The tank is initially full, and then a pump is used to take water out of the tank at a rate of 4 gallons per minute. The pump is turned off after 5 minutes. At that point, the pump is changed to one that will pump water into the tank. The change takes 2 minutes and the water level is unchanged during the switch. Then, water is pumped into the tank at a rate of 2 gallons per minute for 3 minutes.
A. 
B. 
C. 
D. 
Answer: A
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Determine how many of the indicated shape there are in the figure.Squares (of any size)
A. 12 B. 8 C. 9 D. 11
Multiply or divide as indicated. Write the answer in lowest terms.
? 
A. 
B. 
C. 
D. 36x
Suppose that the average adult in the United States will work x number of days (rounded to the nearest day) to earn enough to pay for all of the household's leisure activities in that year. This number can be calculated by multiplying the average percent of household income spent on leisure activities by 365 (the number of days in a year). The bar graph shows the percent of income spent in various countries of the world. Use the graph to answer the question.
List all countries in the graph in which less than 12% of household income is spent, on average, for leisure activities.
A. Germany, Britain, Japan, USA B. China, Australia C. China, Australia, France D. China, Australia, France, Germany
Perform the indicated operations. Write the resulting polynomial in standard form.(7x7 + 7x5 + 8x) + (3x7 - 4x5 - 4x)
A. 17x13 B. 10x7 + 3x5 + 4x C. 11x7 + 3x5 + 3x D. 10x + 3x7 + 4x5