Answer:
45 miles per hour
Step-by-step explanation:
The second bit of information is completely irrelevant. To calculate speed, you have to use the equation distance divided by time. If the distance of the trip is 90 miles and it took two hours, 90/2 = 45.
Downpayment of 20% of 989
20% * 989 = (20/100) * 989 = 0.2 * 989 = 197.8
Down payment = 197.8
Remainder = 989 - 197.8 = 791.2
Therefore remainder = $791.20
Hope this explains it.
the asnwer to your question is 27
3 equivalent ratios or 5/2
10 /4
20/8
30/12