There are three source of resistance in parallel circuit. two of them are rated at 20 ohms, the other at 10 ohms. what is the circuits total resistance

How do you solve a question like this?

How many solutions does the nonlinear system of equations graphed below have?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.