What difference is there please tell me in a mathematical way​

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

Explain why the factor 1.5 is broke. into two numbers in the model.

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%