3:13=39:N a.159
b.169
c.186
d.196
2. 4:8=18:N
a.36
b.45
c.56
d.66
3. 2:7=N:49
a.14
b.15
c.16
d.17
4.45:N=15:7
a.20
b.21
C.25
d.32
5.2:9=N:81
a.18
B.20
c.22
d.24
6. 4:15=12:N
a. 45
b.50
c.55
d.60
7. 2:5=N:10
a.4
b.8
c.12
d.20
8.if a 54-m rope is cut into the retio of 3:6:N what is N?
a.9
b.7
c.5
d.3
pls help me!!
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