Which equation shows a correct evaluation of (mn)(4)? m(x) = 4x-5
n(x) = 2x + 11
A.
(mn)(4) = 8(4) - 55
B.
(mn)(4) = 8(4)2 + 34(4) - 55
C.
(mn)(4) = 8(4)2 - 55
D.
(mn)(4) = 8(4)2 - 6(4) - 55

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%