Answer:
No
7x7=49 and 8x8=64, 56 does not have an exact square root
2.75 or 2
Step-by-step explanation:
4b - 3s = 40
4b = 40 + 3s
b = 40 - 3s/4
4b - 40 =3s
4b - 40 /3 = s
The number is 5
6+3n = 5n-4
Subtract 3n from each side
6+3n-3n = 5n-3n-4
6 = 2n-4
Add 4 to each side
6+4 = 2n-4+4
10= 2n
Divide by 2
10/2 =2n/2
5=n
