Answer:
2.5
Step-by-step explanation:
20/8
Answer:
85% decrease
Step-by-step explanation:
The percentage change is the change fraction multiplied by 100%.
percent change = change / original × 100%
= (3 -20)/20 × 100%
= -17/20 × 100% = -85%
A decrease from £20 to £3 is a change of -85%.
180 is the speed of the motorboat. I don't know the speed of the current.
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120÷4=30
30×6=180