13. (6-9)^-3= -1/27 or -0.04(rounded to nearest hundredth.
15. 4^-1+(5-7)^-2= 1/2 or .5
First off subtract the cost of the computer from the total cost
1,220-995 = 225
Then divide 225 by 3 to get the price of each of the software
225/3 = $75
Answer:
A(1) = -7
A(4) = -48
A(8) = -769
Step-by-step explanation:

m∠ZAB + m∠CAB = 180° by the angle addition postulate
m∠CAB + m∠ACB + m∠CBA = 180° because of the triangle angle sum theorem
m∠ZAB = m∠ACB + m∠CBA using the subtraction property
<h3>What is an equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
m∠ZAB + m∠CAB = 180° by the angle addition postulate
m∠CAB + m∠ACB + m∠CBA = 180° because of the triangle angle sum theorem
m∠ZAB = m∠ACB + m∠CBA using the subtraction property
Find out more on equation at: brainly.com/question/2972832
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Answer:
Mean absolute deviation (MAD) of a data set is the average distance between each data value and the mean.
Step-by-step explanation: