help math

You use scale factor of 3/4 to create a dilated circle with a radius of 9 inches. What is the radius of the original circle?(1 point)

What is the length of x in decimal form to the nearest hundredth? (1 point) first triangle: 11.4 in. 18 in. Second triangle: x 23. 4 in.

△XYZ∼△RST. m∠X=50°, m∠S=79°. What is the measure of angle T?(1 point) m∠T =

Given △PQR∼△LMN, m∠Q=113°, and m∠R=26°, what is the measure of angle N?(1 point) m∠N = °

Line AB is on the coordinate plane and does not pass through the origin. Line AB is dilated with a scale factor of 3 and a center of dilation at the origin to create line A′B′. Describe the effect of the dilation on line AB. In particular, make sure to de...