Sara and 3 ofher friends went to lunch one day . Each person paid for her own lunch , but they agreed to split the tip. If the tip amount was 15% of the total , and the 4 Junches totaled to \$60 , what was the portion of each person's tip amount ?

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

sweetheart, there isn't a cube below.