Find each of the following angles and acrs formed in circle B, with diameter XZ.​

The sum of two numbers is 86, and their difference is 20. find the two numbers

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

Two farmers pay a total rent of $140 for a pasture. the first farmer placed $4 oxen in the pasture, and the second farmer placed $30 sheep in the pasture. the farmers split the rent based on the proportion of the pasture eaten by their own animals that month. how much should the first farmer pay, if 1 ox eats as much as 10 sheep in a month?