Write the function y = 3(x - 1)2 + 2 in standard form

The triangles are similar. what is the value of x? show your work.

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?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab