PLEASE HELP IT’S TIMED

a = -

b = -

c = 9

d = 3

e = 3

f = 2

Step-by-step explanation:

First we will solve the expression:

Solving:

First we will take negative sign common, then take LCM of denominator and simplify the expression.

So, After solving we get:

a = -

b = -

c = 9

d = 3

e = 3

f = 2

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d