The sum of the digits of a certain two-digit number is 7. reversing its digits increases the number by 9. what is the number? write a system of equation to slove the problem

Manuela claims that and are congruent. which statement best describes her claim? she is incorrect because the segments do not have the same orientation. she is incorrect because the segments do not have the same length. she is correct because the segments have the same length. she is correct because the segments have the same orientation.