Answer:
Step-by-step explanation:
24 + 3r >= 100 is the equation
6x-21+5 = -19 Distribute
6x-16 = -19 Combine like terms
6x = -3 Add
x = -1/2 Division
1. 54 and 9/20 km
2. 80 mm
3. 1.142 mi
4.0.83333 cm
Do them all by the butterfly method.