17. Ifr + 52+ 13 = 12, - ar = 4, and = -3, find du de When r = 3 and s = 1. 18. The Power (watts) of an electric circuit is related to the circuit's resistance R (ohms) and current I (amperes) by the equation P = IR. a. How are a, , and , related if none of the P, R, and I are constant? b. How is - related to - if P is constant? :nollsups guiwolfol sof novig (0) \\ bart.at (x/)riaco - (xS)dale + er + x8 = (x)1