The least active of the following five elements in the Halogen Family is a. 53I
b. 9F
c. 85At
d. 35Br
e. 17Cl

Idon’t understand this page, can someone ?

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.