Answer:
1) 225
2) 2304
Step-by-step explanation:
1)
Use geometric mean of legs

2)
Use geometric mean of altitude

Answer:
12*15 + 4*15*1.5
180+90 = $270
Step-by-step explanation:
So when you change the mixed numbers into improper fractions, they become 85/4 and 74/4. Your new problem is 85/4-74/4. Basically 85-74. That equals 9. So the improper fraction answer is 9/4. We now make that back into a mixed number, creating 2 1/4, or A.