Solve for x. 4(x - 3) = 3(x + 1)

Can someone me and plz do the problem

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

Find the missing dimension! need asap! tiny square is a =3025 in ²