Is the following exponential function an example of growth or decay?

y=3(4/5)^x

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.