D>7
To write an inequality means to write an expression where one side is greater than the other, or less than the other. In this case, we are to write an inequality that shows that John will have more than 7 dollars in his bank account. The variable we are to use is d, which will represent the number dollars in his bank account. If he wants to have more than seven dollars, then d will have to be greater than seven.
Since lines a and c are parallel and we are given that c is perpendicular to b, we can infer that b is also perpendicular to a.
So, a and b are perpendicular, the angle formed by these lines should be 90.
Hence, angle 2 is 90.
Hope this helps :)