Will give brainliest if right

O D. The fewest students prefer sliver Model 66 calculators.

B

Step-by-step explanation:

Other two are not true! A is untrue bc .90 pefer silver calculators. C-  .25 want model 55, and .32 for Model 77

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .