find the perimeter of this shape. please & ty:) i need a step-by-step explanation if you can help

The reflexive property of congruence lets you say that ∠pqr ≅

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?