Marcel is sewing a triangular banner. The base of the banner is 3 times longer than the height and the area is 294 cm². How long is the base of the banner?

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

3/20

step-by-step explanation:

well, there are 20 outcomes, and 3 of them you want. so, 3/20

1 mph

step-by-step explanation:

if the question is asking how much does she drive per mile then,

13 / 13 = 1 mph