Answer:
Explanation:
1. 20–(6+9) = N
20– 15 = N
N= 5
2. Alfredo —16
John — 11
Maria— 7
3. P= 2(1+w)
1= w +7
P = 54
substitute
54 = 2(w+7+w)
54/2= 2w+7
transpose
2w= 54/2 –7
2w= 27–7
2w= 20
w= 20/2
w= 10 inches
substitute
1= w+7
1= 10+7
1= 17 inches
eto lang po alam ko hehe