(1.598 × 10¹7) - (4.58 × 10¹5) simplify

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Acircular garden with radius of 8 feet is surrounded by a circular path with a width of 3 feet. what is the approximate area of the path alone? use 3.14 for π