Kiana wants to cover and area of her backyard with concrete patio stones in the shape of a right triangle each stone cost 0.42$ and covers 29.26 squares inches .Each square grid represents 1 square foot if R(1,1) E(7,9) and D(I5,3) what is the minimum number of stones Kiana should by to cover a right triangular area in her backyard show work below.

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