Is this correct if not can u tell me what I need to fix please!

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

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%