Identify the Y-Intercept. Please help if you do correctly I will see if it allows me to give you a​

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14