Select the equivalent expression. \left(3^{-8}\cdot 7^{3}\right)^{-2}=?(3
−8
⋅7
3
)
−2
=?left parenthesis, 3, start superscript, minus, 8, end superscript, dot, 7, cubed, right parenthesis, start superscript, minus, 2, end superscript, equals, question mark
Choose 1
Choose 1

(Choice A)
A
21^{10}21
10
21, start superscript, 10, end superscript

(Choice B)
B
\dfrac{7^6}{3^{16}}
3
16

7
6

​
start fraction, 7, start superscript, 6, end superscript, divided by, 3, start superscript, 16, end superscript, end fraction

(Choice C)
C
3^{16}\cdot 7^{-6}3
16
⋅7
−6

Convert 16 yards to feet use the conversion rate 3 feet = 1 yard

The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?