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Answer:$210

Step-by-step explanation: First you have the original worth which is equal to 100% and an additional $40%. Next you divide the current worth by 140% which can be written as 1.4. The result is $210 as the worth a year ago.

Step-by-step explanation:

For number one, you are looking for how many multiplication equations can equal the number given. For example,

C) 12: 1, 12, 6, 2, 3, 4,

For number 2, composite numbers are numbers that are products of two smaller numbers.

For example, 30=15x2, so it is composite. Try dividing the numbers to see if they are composite.

For number 3,

a) two factors: 5 (1, 5)

b) four factors: 15 (1, 15, 3, 5)

c) five factors: 20 (1, 2, 4, 5, 20)

Answer:

Step-by-step explanation:

b) 8: 1, 2, 4, 8

c) 12: 1, 2, 3, 4, 6, 12

d) 16: 1, 2, 4, 8, 16

e) 9: 1, 3, 9

f) 18: 1, 2, 3, 6, 9, 18

g) 50: 1, 2, 5, 10, 25, 50

h) 45: 1, 3, 5, 9, 15, 45

i) 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

j) 42: 1, 2, 3, 6, 7, 14, 21, 42

2a) 30: is a composite number

  b) 31: not composite

  c) 32: is a composite number

  d) 33: is a composite number

  e) 34: is a composite number

  f) 35: is a composite number

  g) 36: is a composite number

  h) 37: not composite

NOTE: a composite number has more than two factors

3a) two factors: 11

 b) four factors: 6

 c) five factors: 16