Answer:
30=2*3*5, so it's 30
Step-by-step explanation:
15=3*5, so it's not 15
20=2*2*5, so it's not 20
30=2*3*5, so it's 30
57=19*3, so it's not 57
Answer:
9. 
10. 
Step-by-step explanation:
9. Given the sequence

In this sequence,

Note that

then the common difference in this sequence is 
You have

then the explicit formula is

10. Given the sequence

In this sequence,

Note that

then the common difference in this sequence is 
You have

then the recursive formula is

Answer:
$190.35
Step-by-step explanation:
180 ⋅ 0.0575 = 10.35
Add 180 to 10.35
$190.35
(I could be wrong. Sorry if I am)
Hope I helped :)
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3 3/4 =3.75
20.25 divide 3.75 = 5.4
one pound of candy costs 5.40
Answer:
5 units
Step-by-step explanation;
We can use the formula for finding the length or magnitude of line joining two points.
Length = √((x2-x1)² + (y2-y1)²)
The points joining the line are C (-1,4) and D (2,0)
Length = √((2+1)² + (0-4)²)
= √((3²) + (-4)²)
= √ (9+16)
= √25
= 5 units