Answer:
y=3
Step-by-step explanation:
The vertical sides of the rectangle must be equal
10 =2y+4
Subtract 4 from each side
10-4 =2y+4-4
6 = 2y
Divide each side by 2
6/2 =2y/2
3=y
f = 48/5
5f = 12 * 4
5f = 48
Help with what... there is no question
14
d=5 so
2(5)+4(5)-9-7
10+20-9-7
30-9-7
21-7
