Find the inverse of the matrix 
(if it exists).
a. 
b. 
c. does not exist
d. 
e. 
c. does not exist
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Solve the problem.An economist predicts that the buying power B(x) of a dollar x years from now will decrease according to the formula B(x) = 0.12x. How much will today's dollar be worth in 3 years? Round the answer to the nearest cent.
A. $0.36 B. $0.00 C. $0.53 D. $1.14
Solve the problem.The price of a printer was reduced from $400 to $220. What was the percent of decrease?
A. 81.8% decrease B. 45% decrease C. 55% decrease D. 50% decrease
Provide an appropriate response.Convert the decimal .980980980. . . to a fraction by writing it as the infinite series 
A. 0.981
B. 
C. 0.979
D. 0.98198198
Use the graph to determine the function's domain and range. Write the domain and range in interval notation.
A. domain: x = 1 range: y = -5 B. domain: (-?, ?) range: (-?, ?) C. domain: (-?, ?) range: y = -5 D. domain: x = 1 range: (-?, ?)