What is the measure of ∠cab?

! this is worth 25

a.
34°

b.
56°

c.
68°

d.
146°

B.56 
 the sum of the degree of angles in a triangle is always 180 degrees. since angle ABC is 90 degrees and angle ACB is 34 degrees, the last angle, which is angle CAB, is 180 - 90 - 34 = 56 

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!