Question

Josephine is taking a college course, and her professor bases the course grade on the average of 2 tests taken in the semester. She wants to know what she needs
to earn on the last test to maintain her grade. Rearrange the following equation for b, where is the average of 2 test scores, a and b.
C=a+b/2

1. b=2c/a
2. b=2c+a
3. b=2c-a
4. b=2c(a)

Answer 1

Answer:

answer b is b=2c+a okay it is right answer