Line a passes through points (2, 13) and (10, 6). Line b passes through points (10, 10) and (2, 3). Are line a and line b parallel or perpendicular?

Sum is 17 and their difference is 3

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

Show all work to identify the discontinuity and zero of the function f of x equals 6 x over quantity x squared minus 36