Try another version of this question
Evaluate `4``c^3b` when `c = -1/2` and `b = -2/5`
Box 1: Enter your answer as a reduced fraction (like 5/3, not 10/6) or as an integer (like 4 or -2)
Do not enter mixed numbers
Enter DNE for Does Not Exist, oo for Infinity
`1/5`