B. complete this proof.

given: c is the midpoint of bd and ae.

prove: ab de

statement

1. c is the midpoint of 1. given

bd and ae

2. bc - cd and

reason

3. ac ab + bc,

ce - cd + de

4. ab - ac - bc

5. substitution

property

6. de = ce - cd

6.

glencoe geometry

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