3, 12, 48, 192,... What type of sequence is this? (write the word) geometric State d or rand its value. r=4 Explicit Equation: f(n)=f(3)*4A(n-1) Recursive Equation: Find f(13). f(13)​

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%