Answer:
29°
Step-by-step explanation:
Since this a right triangle and the sum of interior angles in a triangle is 180° We can say
2x + 1 + 5x + 5 = 90°
7x + 6 = 90°
7x = 84°
x = 14 and m<A = 2x + 1 we replace x with the value we found m<A = 14 × 2 + 1 = 29°