Alvin is saving $1,500 for a down payment on a car. He has saved $300 so far and plans to save the rest in 6 months. How much money does he need to save per month to have a $1,500 down payment?

Ya i could just need to know what type of math

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