The given ratios 3: 5 and 15: 25 are equal. Because when you divide the ratio 15: 25 by 5 on both numerator and denominator, the first ratio 3: 5 can be obtained. Similarly, when you multiply the first ratio 3: 5 by 5, the ratio 15: 25 can be obtained.
Answer:
1. 
2. 
3. 3
4. -1 > x
Step-by-step explanation:
1.

2.

3. All share the factor of 3
4. Open circle is used for < (less than) or > (greater than). Shade to the right for > or ≥.
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Answer:
The distance is equal to
Step-by-step explanation:
we know that
the formula to calculate the distance between two points is equal to
we have
substitute the values
Simplify
Answer:
g(f(4)) = 9
Step-by-step explanation:
Fill in gf(x) for where x is in g(x): (x-7)²
Then, fill in 4 for where x is: (4-7)²
Square it: (-3)²
9