Arlene sells computers and tablets. she earns an 8% commission on every dollar of sales that she makes. in one month she earned a total of $2,560 in commissions. write an equation for arlenes sales, s, in dollars that month. then find her sales

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

answer

you start with $5 and save $10 a week until you have at least $45wer

step-by-step explanation:

the answer i believe is 27 units.

step-by-step explanation:

b and c are the correct answers.

good luck on the quiz! : d