On dividing both the numerator and the denominator of 20a^2b/5ab^2 the result is 4a/b
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The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

When is g(x) = 0 for the function g(x) = 5.23x + 4?