Lesson 2-3

21. 6 - 2 (x + 6) = 3x + 4

What is 7/8 divided by 2/3

Which expression is equivalent to 2 (a + 2 b) minus a minus 2 b? 3 a + 2 b 3 a-2 b a-2 b a + 2 b

A light bulb manufacturer claims that a certain type of bulb they make has a mean lifetime of 1000 hours and a standard deviation of 20 hours. Each package sold contains 4 of these bulbs.

Write the value of underline digit 0.613

In a booster club, 1/8 of the 128 members are men. How many male members are in the club? A. 1 B. 16 C. 112 D. 64

Which type of triangle contains its centroid? A. right B. acute C. obtuse D. all of the above

The weather service recorded some temperatures in Baltimore and Seattle throughout the month of October. Which statement is TRUE when comparing the interquartile range (IQR) of the cities?

If Susan gets paid $100 by the end of the week and works hourly at a rate of $12 how many hours everyday does she work given that she works an equal amount of time everyday over the course of 6 days.

A 250-kVA, three-phase, 480-volt transformer requires 75 gallons of insulating oil to keep it properly cooled. How many liters is this?

What is a fraction is equivalent to 8/3 that its denominator is 9