Answer:
True
Step-by-step explanation:
Parallel lines always have the same slope, so therefore the answer is True
Answer:
Step-by-step explanation:
combine like terms (6n-4n)=(5-15)
2n=-20
n=20/2
n=10
Write both sides as powers of 
:
since 
. Then
Answer: 21?
Step-by-step explanation: if the ratio is 7:5 and its now x:15 and 15 divided by 5 is three so you have to multiply 7 by three to.
Answer:
n = d+30 since he has 30 more nickels than dimes, to make them equal you have to add 30 to the dimes.
:
n+d = 150 substitute for n:
d+30+d = 150
2d = 120
d = 60 he has 60 dimes and 150-60 = 90 nickels
