Answer:
$135.60
Step-by-step explanation:
120*13%=15.6
15.60+120.00=$135.60
Inserting all the given information into the identity, we have

Answer:
.
Step-by-step explanation:
They will ring again together at 10:15am. Because the common factor for 40, 48 and 60 is 240, which means 240 minutes, that equals to 4 hours. Hence 4 hours after 6.15am is 10.15am.
Hope this helps.