28. A piece of string art is
made by placing 16 evenly
spaced nails around the
circumference of a circle.
A piece of string is wound
from A to B to C to D.
What is mZBXC?

2nd one in the first row is correct

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.