Solve and check.7y - 2(y - 4) = 9y - (5y + 13)
A. y = 5
B. y = -5
C. y = 21
D. y = -21
Answer: D
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The bar graph shows the percentage of adults that use the Internet for specific tasks. Use the graph to represent the given set using the roster method.
{x | x is a task in which usage lies between 15% and 33%}
A. {news} B. {email, information searches, news, job, school} C. {news, job} D. {information searches, news, job}
Translate into an equation, and then solve the equation.Two times what number is equal to twelve?
A. 2x = 12; 6 B. 2x = 12; 7 C. 2x = 12; 5 D. 2 + x = 12; 6
Factor completely. If the polynomial cannot be factored, say it is prime.(x + 8)2 - 36
A. (x + 14)(x + 2) B. x2 + 16x + 28 C. (x - 2)(x - 14) D. (x + 44)(x - 28)
Solve.On a test of 80 items, Jim got 79% correct. (There was partial credit on some items.) How many items did he get incorrect?
A. 16.8 incorrect B. 39.8 incorrect C. 63.2 incorrect D. 14.5 incorrect