I would go with Either E or A
Answer:
C. postulate; theorem
Step-by-step explanation:
While a "given" is taken as true without proof, and a "problem" sometimes involves an assertion that can be proven, the answer choices involving these terms are not correct here.
The dictionary definitions of "postulate" and "theorem" apply. It is useful to learn the meaning of these terms so you can understand problems and descriptions that use them.

Actually Welcome to the Concept of the Trigonometry.
here, we use the Linear pair property of the adjacent angles.
We know that, all the adjacent angles in a linear pair add to get 180°
so we get as,
=> (n+6) +90°+(2n+3) =180°
=> (n+6) +(2n+3) =180-90
=> 3n+9 = 90
=> 3n= 90-9
=> 3n = 81
hence, n = 81/3
=> n = 27°
thus the value of n is 27° .
Answer:
Step-by-step explanation:
7 friends plus himself = 8 persons
Round trip flight cost = &389x8= & 3112
Hotel bill = &249 x 4 rooms 3 nights = &
& 2988
Cost at Observatory desk = & 18.5 x 8= & 148
Cost at base ball viewing venue = 38 x 8 = & 148
Total budget apart from feeding should be = & 6552