Bentano spends $170 to order 30 pounds of nuts from an online company. The company charges $3.50 per pound for peanuts and $7.50 per pound for almonds. It also charges a flat fee of $13 for shipping and handling. Which equation can be used to find p, the number of pounds of peanuts Bentano buys?

3.5p+7.5(p−30)−13=1703 point 5 p plus 7 point 5 times open paren p minus 30 close paren minus 13 is equal to 170

3.5p+7.5(30−p)−13=1703 point 5 p plus 7 point 5 times open paren 30 minus p close paren minus 13 is equal to 170

3.5p+7.5(p−30)+13=1703 point 5 p plus 7 point 5 times open paren p minus 30 close paren plus 13 is equal to 170

3.5p+7.5(30−p)+13=170