Please help me, and hurry. It's an emergency!!! (Ok maybe not an emergency but I definitely need help.)

Answer:
When writing this decimal as a single-digit integer multiplied by a power of ten, the single digit integer is -8 or -7 or -4 or 4 or 7 or 8 and the power of ten is -8 or -7 or or -4 or 4 or 7
please help me
Step-by-step explanation: