Answer: I am pretty sure it is -1 because it is vertically across
Step-by-step explanation: I am so sorry if it is not right
If she got 9 messages last week and 3rimes as much this week then she got 27 messages because 9x3=27
25 minutes = 1800 words
so 1 minute = 1800/25 = 72 words
answer: 72 words per minute
Answer:1385.44mm sq
Step-by-step explanation: surface area of a circle = pi x radius squared
3.142 x 21 squared