Solve the problem.The cost C of an international call is given by the formula 
where 
Find the duration of a call that costs $3.22 by replacing C in the formula with 3.22 and solving the resulting equation.
A. 7 minutes
B. 23 minutes
C. 15 minutes
D. 16 minutes
Answer: C
Mathematics
You might also like to view...
Indicate whether the graph represents a one-to-one function.
A. No B. Yes
Mathematics
Tell whether the statement is true or false.The absolute value of any nonzero number is positive.
A. True B. False
Mathematics
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.d = rt; t = 2, d = 8
A. d = 4 B. r = 4 C. r = 6 D. r = 10
Mathematics
Find the sales price and total price. Round to the nearest cent.Amount of Sales Tax: $451.97Sales Tax Rate: 6%
A. $7532.83, $7984.80 B. $753.28, $1205.25 C. $6456.71, $6908.68 D. $9039.40, $9491.37
Mathematics