Extremely ! is 7,13,19,25 and arithmetic or geometric sequence and explain

Arithmetic becaus eit has a common difference ( 6).

So don't take my word i'm not exactly a mathematical person but i would assume a. because while selling the soap every month you increase in sells so you would by 11 percent. the you would get the factor 0.89 which if i had to guess would be the monthly profit over 11 probably wrong tho