To find the volume, multiply all three sides. The answer will be
1.5x0.4x3=1.8
The answer is 1.8m³
4≤x/2.1
To Solve
Multiply by 2.1
8.4≤x
The answer is D
Because a unit rate has a one and the bottom always
0.5007 this is the decimal
8-5=-3 It's negative 3 because the 8 is greater than 5