Hello there tiny humans can any you answer this pls for me

28. B

29:

A. 5x-7

B. 15b+25

C. 16x^2+4x

D. 13g-20

E. 6h+23

30:

A. Constant = 103, Coefficient= 94, Variable= w

B. Constant= -3, coefficient= 18, variable= x

C. Constant= -7, coefficient = -5, variable = y

D. Constant = 16, coefficient = -24, variable = z

31:

A. x+10

B. 13-9/x

C. 9x+4

D. 4+11x

the answer is the third / last answer

step-by-step explanation:

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value