It is like if you have two number lines. Then one has a pointer at 0, and the other one has the pointer facing at 2 then it will be lesser because the first one has 0 or if it turned around it would be greater. If it is equal then it would have the same number, but watch out if it is a negative number.
X+y=57
y=x+15
x+x+15=57
2x=42
x=21
y=21+15
y=36
Answer: $21
HOPE THIS HELPS
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Answer:
70 is the answer for this question
Answer:
C
Step-by-step explanation:
Substitute n = 8 into the explicit rule
= -
× 
= -
× 
= -
= - 625 → C