A triangular pyramid with an approximate base area of 15.6 mm² is pictured at right.
What is the approximate volume of the pyramid?
A140 mm
B70 mm
С 47 mm
D 281 mm

Choose the number sentence that shows the identity property of addition. a. 122 = 61 + 61 b. 62 = 1 + 61 c. 61 = 0 + 61

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.