A cuboid shed has dimensions in metres, of height root 6, width root 5 and length root 10 find the volume of the shed

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

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

Answer this question only if you know the answer! 30 points and