The annual rate, r, compounded annually, it takes for 
dollar to grow to A dollars in 4 years is given by the formula 
. Find the rate necessary for a dollar to double in 4 years.
?
Give your answer to one decimal place, if required.
?
__________%
Fill in the blank(s) with the appropriate word(s).
18.9
Mathematics
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Find the slope of the line through the points.(1, 8) and (3, 3)
A. - 
B. 
C. - 
D. 
Mathematics
Solve.The cost of renting a certain type of car is $31 per day plus $0.08 per mile. Find a linear function that expresses the cost C of renting a car for one day as a function of the number of miles driven x.
A. C(x) = 0.08x + 31x B. C(x) = (x + 0.08) + 31 C. C(x) = 31x + 0.08 D. C(x) = 0.08x + 31
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Divide.
A. 4y2 + 6y - 1 B. 4y2 + 6y C. 4y2 - 6y + 1 D. 4y2 - 1
Mathematics
Solve the equation.3(6 + 3x) = 
A. {3}
B. {9}
C. 
D. {-3}
Mathematics