Which equation represents a circle with center (-4, 9) and radius 7? (x-4) + (y+9) = 49
(x+4) + (y-9) = 7
(x+4) + (y-9) = 49
(x-4) + (y-9) = square root of 7

The acceleration of an object due to gravity is 32 feet per second squared.what is acceleration due to gravity in inches per second squared?

In a column proof the right column states your reasons

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?