Which pair of slopes could represent perpendicular lines?
1/7 , 7
1/2 , 2/4
-3/4 , 4/3
1/3 , 1/3

Answer this question! 30 points and brainliest!

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%

How do i take any fraction and make it into a decimal or percentage?