Answer:
$133
Step-by-step explanation:
Let x = amount of money she had before she spent any money.
x - 29 - 29 - 29 - 15 = 31
x - 102 = 31
x = 133
Answer: She had $133.
Answer:
Therefore the value of 'y' is,

Step-by-step explanation:
Given:

To Find:
y= ?
Solution:
........Given
Step 1. Adding 50 to both the side we get

Step 2. Dividing by 10 on both the side we get

Therefore the value of 'y' is,

Answer:
8
Step-by-step explanation:
40 grouped into 5 = 40/5 = 8
4+2x = x (x = student in smaller group)
4 + 2x + x = 28 (total # of students)
4+ 3x = 28
3x = 24
x = 8
8 students in the smaller group
4 + 2(8) = 20 students in the larger group
B- i could be wrong though