Can someone please help me solve this with showing work Evaluate the following expressions
r=315 and t= -2:5 r/5 -10t

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut

The graph shows the distance kerri drives on a trip. what is kerri's speed . a. 25 b.75 c.60 d.50