The equation used to find the amount of time Olivia answers phone calls is t +25= 45
The amount of time Olivia answers phone calls is 20
Olivia volunteers at the hospital where her mother works
She answers phone calls
She spends 25 minutes delivering flowers to patient's room
She spends 45 meetings volunteering at the hospital
Let t represent the amount of time Olivia answers phone calls in the hospital
Hence the equation used to calculate the amount of time spent on calls is t + 25= 45
t + 25= 45
collect the like terms
t= 45-25
t= 20
Read more here
https://brainly.com/question/21461636?referrer=searchResults
#SPJ1