9514 1404 393
Answer:
C. 39°
Step-by-step explanation:
The measure of the angle where the chords cross is the average of the measures of the subtended arcs.
x = (AB +CD)/2 = (28° +50°)/2 = 78°/2
x = 39°
Answer:
49
Step-by-step explanation:
Let there be x students in the class.
Since, donation by each student is equal to the number of students in the class.
So,
Total donations = 2401

Thus, the number of students in the class = 49
so twice as much is 2 times x and she did 10 more than that quantity.
10 + 2x
Answer:
C
Step-by-step explanation:
starts with 4 and is multiplied by 3 every term