A certain radioactive isotope has a half-life of 11 days. If one is to table showing the half-life decay of a sample of this isotope from 32 grams of 1 gram; list the time (in days, starting with t=0) in the first column and the mass remaining (in grams) in the second column, which type of sequence is used in the first column and which type of sequence is used in the second column?

Determine domain and range, largest open interval, and intervals which function is continuous.

Yvaries directly as x. y =90 when x=6. find y when x=13

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.