What is x, the length of the diagonal, to the nearest whole number

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square