Answer:
45
Step-by-step explanation:
You are given only one space. Note that the term 6 shows up on both sides. Therefore, it is implying that you need to multiply the other two terms together. Do so:
9 x 5 = 45
45 is your answer.
~
5/9 miles
1/30 of an hour
$27.72-$23.22=$4.50
$4.50÷$0.18=25
x=25
So Tim sent 25 messages last month.
