PLEASE HELP!! asap, thank you if you do.
you do not have to do all of them, please show work btw.

Does the point (1, sqrt 7) lie on circle shown.

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18

Multiplying fractions by whole number 5 x 1/3=?