Answer:

1.6m³n³

2.10a²b-15ab²

3.5a³

4.5a(5)b³+7a⁴b(7)

5.-8a³bc(6)

Step-by-step explanation:

In no. 4. the (5 ) and (7) is an highest exponent.

In no. 5. the (6) is an highest exponent

..please understand me!!

Example of exponent- ²,³,⁴,