Answer:
75 % of 12 = (75 * 12 ) / 100 = 9 were sold
12 - 9 = 3 were thrown out
Step-by-step explanation:
3 cm=8 km
1cm=8/3 km
5 cm=8/3×5=40/3 =13 1/3 km
4x - 2y = 8
y = -2
4x -2(-2) = 8
4x + 4 = 8
4x = 4
x = 1
5a - 30
y=-3x+1
