Pls explain with proper steps

1. A farmer moves along the boundary of a square field of side 10m in 40s. What will be the
magnitude of displacement of the farmer at the end of 2 minutes 20 seconds?
2. What is the acceleration of a body moving with constant velocity?
3. Is it possible for a body to be accelerated, if its speed is constant. If so, give an example.

Stephen thublin invests $1,000,000 in a 45-day certificate of deposit with 6.55% interest. what is the total interest income from the investment?

Which point has an coordinates of (2,0) ? a

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!