Provide an appropriate response.Find the slope of a line perpendicular to the line -x + 9y = 45.
A. - 
B. 
C. 9
D. -9
Answer: D
Mathematics
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Find the quotient.
÷ 4
A. 
B. 
C. 
D. 
Mathematics
Write the improper fraction as a mixed number.
A. 13
B. 
C. 148
D. 148
Mathematics
Find the tax rate for the area. Round to the nearest tenth of a percent.Total tax needed: $2,773,000Total assessed value: $53,706,000
A. 0.5% B. 19.4% C. 5.2% D. 1.9%
Mathematics
Solve the problem.The sales of a mature product (one which has passed its peak) will decline by the function S(t)= S0e-at, where t is time in years. Find the sales after 8 years if 
and 
A. 5746 B. 58,065 C. 245,075 D. 11,491
Mathematics