5*9=45
1*9=9
Then add both numbers together
45+9=54
It would fly 147 miles in 3 hours
Answer:

Step-by-step explanation:
we know that
The simple interest formula is equal to
where
I is the Final Interest Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have
substitute in the formula above
solve for r

convert to percentage (multiply by 100)

72 = 8*9
8 + 9 = 17
The factors you're looking for are 8 and 9.