The formula v=at +16t² is used in mechanics. Rewrite to nake a the subject and find it's value when v=27 and t=4

What is the length of bc ? enter your answer in the box.bc =

What aspects of lines have to be diffrent

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.