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What is the standard deviation of the following data set?

8, 7, 8, 11, 9, 12, 15, 16, 17, 16, 18, 19,

Straight and vertical angles

What is the ratio of Tom's salary to Adam's salary if Tom's salary is $4,500 and Adam's salary is $7,500?

1) The data in the table below represents the pressure of the gas as the temperature changes. Plot a graph of the data, using the space below. Draw a trend line and calculate its slope.

What number must be added to the expression below to complete the square? x^2 - 22x

6 - 2 1/4 equals 1/2

Write these decimal fractions in words 42/100

I'm stuck on this question: Find the 3 consecutive numbers whose sum is 438. Can someone take me through it?

Enter the first 8 terms of the sequence with f (1) = 42 and f (n) = f (n - 1) - 5 for each whole number greater than 1.

Which of the following values is the solution of x/32 = 8? 4 24 40 256

Mr. Lopez buys shoes for his two children, Maria and Juan. Maria's shoes cost $28.35 with tax. Juan's shoes cost $30.97 with tax. How much did Mr. Lopez pay for Maria's and Juan's shoes?