Discover Questions

Two numbers, a and b, are such that a>b. Their sum is 49. Write an equation to represent this information. Would it still be a+b=49? Is this MELSEC PLC ladder works to delay times to turn on y1 after y0 in a certain seconds?
If not How can I correct it to use for-next? Could a light sail be used to propel ground vehicles? Doesn't anyone here know this? Do open ended inductor(s) and a cap form a LC circuit? How many grams of KCI can be dissolved in 100g of water at 80 C?