Answer:
19
Step-by-step explanation:
Add from numbers 14-20
Answer:
25 necklaces
Step-by-step explanation:
each necklace brings $16 profit (20-4=16)
400÷ 16= 25
so, at 25 necklaces, there will be enough profit to break even after paying for the advertising.
1.
15:25 is a ratio
we can write this as a fraction
15:25 written as a fraction is 
to simplify this we have to divide both numerator and denominator by the highest common factor for both numerator and denominator
the factors for 15 and 25 are as follows
15 - 1,3,5,15
25 - 1,5,25
the highest common factor is 5
so we have to divide both by 5

the answer is
B. 3/5
2. the number equivalent to 3/7 is
9/21
equivalent fractions are fractions , where all the equivalent fractions have the same simplified form
3/7 fraction multiplied by 3
numerator and denominator are both mutliplied by 3

answer is 9/21
Answer:
m = -8
Step-by-step explanation:
have a nice day! :)