If p(x, y) is any point on the line joining the point a(a,0) and b(0,b) . then show that x/a + y/b = 1

The value √10 and √15 are plotted on the number line

As a salesperson you get $50/day and $3.60/each sales you make.if you want to make $60 in one day, how many sales would you need need to make ? a 3b 4c 5d 6 show work.

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x