Emily is playing pool. She wants to hit the number 4 ball into the corner pocket as shown.
70°
70°
Emily knows the angle measures as shown in the figure above. What is the measure of angle X?
If you zoom in it helps read it and pls help me

Which best explains why this triangle is or is not a right triangle?

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.