Pamela’s age is three times jiri’s age the sum their ages is 40.what is jiri age

Anyone know? will mark brainliest if correct

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /

The area of the map is the product of the length and width. write and expression for the area as the product of the two binomials do not multiply