I need help with negative poimts

Select the correct answer from each drop-down menu. rewrite the formula to find voltage. the formula for electrical power (p, in watts) is where v is the voltage in volts and r is the resistance in ohms. for a particular brand of water heater, r is 32 ohms and p is 0.5 watts. the formula to find v is , and the voltage at which the heater operates is volts.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Which shows a reasonable estimation for 124% of 42 using the distributive property?