Unit 5 Hw 5 all things algebra 2014 bottom questions

If y varies as x, and y=8 as x=4 what will be the value of y if x=2

Tonya paid 10$ for a new dvd in this transaction money is aa• store of valueb• medium of exchangec•unit of account

Linda uses thread to sew the booklets together she cuts 6 inches of theead for each booklet how many booklets can. she stich whith 50 inches of thred. will she have any unused thread after stitching up the booklet if so how much