The daytime telephone rate between two cities is 70 cents for the first 3 minutes and c cents for each additional minute. The total charge is reduced 60 percent on calls made after 10:00 P.M. The cost, in dollars, of a 35-minute call made at 10:30 P.M. between these two cities is:
Choose the correct choice
A) 0.4(0.70) + 35c  B) 0.6(0.70 + 0.35c)  C) 0.4(0.70 + 9c)  D) 0.6(0.70 + 32c)  E) 0.4(0.70 + 0.32c)
For first three minutes = 70 cents   Remaining minutes = 35 -3= 
<gadget id="calculator">35 -3</gadget>
<output>32</output>
32   charge for 32 minutes= 32c   total cost (if the call was made in daytime) = 0.70 + 32c   60% chargereducedon night calls =&gt; 40% charge   =&gt;0.4(0.70 + 32c)   Hence, Answer is 0.4(0.70 + 0.32c)
<result>E</result>
The daytime telephone rate between two cities is 70 cents for the first 3 minutes and c cents for each additional minute. The total charge is reduced 60 percent on calls made after 10:00 P.M. The cost, in dollars, of a 35-minute call made at 10:30 P.M. between these two cities is: