Simplify. Assume that any variables are positive.
A. 
B. 
C. 
D. 
Answer: D
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Write the phrase as a mathematical expression. Use x as the variable.A number multiplied by 5, added to -5, subtracted from 6 times the sum of 6 times the number and 7
A. 6(6x + 7) - [5x + (-5)] B. 5x - 5 + 6(6 + 7x) C. 5(-5 + x) + 6(6x + 7) D. 5(-5 + x) + 6(6 + 7x)
Use a graphing calculator to solve the linear equation.Rewrite the equation so that one side is 0, then replace 0 with y. The graph of the equation for y is shown. Use the graph to determine the solution of the equation.3x + 1 + x = 2x - 3
A. y = 2x + 4; 0 B. y = 4x + 2; -2 C. y = 2x + 4; -2 D. y = 4x + 2; 0
Simplify the expression.9
+ 
A. 99
+ 11
B. 21
C. 5
D. 45
Find the probability.A game spinner has regions that are numbered 1 through 9. If the spinner is used twice, what is the probability that the first number is a 3 and the second is a 7?
A. 
B. 
C. 
D. 