A 17-foot tree casts a 36 foot shadow at the same time a house casts a shadow of 84 feet. Determine the height of
the house to the nearest foot.

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

stethere all not eveanp-by-step explanation:

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8