Solve. Write the fraction in simplest form.The following graph is called a circle graph or pie chart. Each sector (shaped like a piece of pie) shows the number of each color of marbles that John has: 256 are red, 160 are blue, 120 are yellow, 184 are green, and 80 are clear. What fraction of the marbles are red? Write the fraction in simplest form.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Translate to a proportion and solve. Round to the nearest hundredth, if necessary.158.4 is what percent of 44?
A. 2.78% B. 27.78% C. 360% D. 3.6%
Mathematics
Solve the problem.If the average cost per unit C(x) to produce x units of plywood is given by 
what do 400 units cost? Round your answer to the nearest cent.
A. $899.93 B. $12,000.00 C. $100.00 D. $837.21
Mathematics
Simplify, where possible.30x - 9y - 20x - 7y
A. -10x - 16y B. 10x - 16y C. 10x - 2y D. 10x - 9y - 7
Mathematics
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y = -6x3 + 6x
A. x-axis B. y-axis C. origin D. x-axis, y-axis, origin E. none
Mathematics