Which rule describes the transformation that is a reflection across the line y=x?

Three coins are flipped. what is the probability that there will be at least two tails?

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°