Solve the pair of simultaneous equation 2x - y =5​

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

Atown has a population of 17000 and grows at 2.5% every year. to the nearest year, how long will it be until the population will reach 19600?