Answer:
49/4
Step-by-step explanation:
x² -7x +(7/2)²=(x-7/2)²
x²-2x·7/2+ (7/2)²=(x²-7/2)²
(7/2)²=49/4
200
SY = 16
XY = 12
15/20 = 12/SY
15SY = 240
15/20 = 9/XY
15XY = 180
about 5 ounces
2869.25
174
thanks for the help guys