Write the word phrase as an algebraic expression. Twice the sum of a number x and twelve
A. 2x - 12
B. 2(x + 12)
C. 2(x - 12)
D. 2x + 12
Answer: B
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Perform the indicated operation. Simplify the answer when possible.
? 
A. 
B. 
C. 7
D. 2
Solve the problem.The following data give the distribution of the types of houses in a town containing 50,000 houses. Make a pie chart for these data.
What will be an ideal response?
Solve the problem.According to the Gas Kinetic Theory, the average speed of a gas particle is given by 
where 
is the speed in m/s, k is the constant 1.38 × 10-23, T is the temperature of the gas in Kelvin, and m is the mass of the gas particle in kg. What is the average speed of an oxygen molecule with a mass of
at a temperature of 500 K?
A. 1020 m/s B. 174 m/s C. 575 m/s D. 330,700 m/s
Use both properties of equality to solve the equation.22 = 2 - 5m
A. -15 B. -2 C. -4 D. -19