Help me with this math question

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%

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.

The points (1, 7) and (0, 2) fall on a particular line. what is its equation in slope-intercept form?