This may be cutting it a bit close! I'm assuming that the 30 Amps are for an AC, dryer, and water heater. While the 40 Amp is for a stove. While it's possible these high loads may not be on at the...
The easiest way to convert is using scientific notation. For example, 0.025A is equal to 2.5 * 10^-2. Since 1 MA is equal to 1 * 10^6 and you're converting up, subtract the larger notation and you...