Can someone please explain how to do this question because I am having a difficult time trying to figure it out.
An answer with an explanation would be nice. Thank you.​

Can someone please explain how to do this question because I am having a difficult time trying to figure it out An answer with an explanation would be nice Than class=

Respuesta :

the answer is B
Explanation: 4/5 of an hour is .8 of an hour 90 minutes is 1.5 hours. .8+1.5+1.7= 4. therefore, the answer is 4 hours