the slope of the linear module is 1.5 what does that mean in the terms of the maximum noise level and the number of people

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

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?

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.