Answer:10
Step-by-step explanation:
2+4+6+6+9+13+30=70
70 divided by 7= the mean should be 10
money going out (20.38+11.48+19.50) =51.36
balance - out = new balance
65.40-51.36 =
14.04
new balance = 14.04
300m because area is Length x width and it's 3x as big as 10 meters it's 30 x 10= 300
8x8x8 or 8 with the power of 3
Angle aed has to be 80 since the two triangles share two of the same angles
