I’m confused to solve this problem plz

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

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

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?