Write each expression in standard form .

-3(1-8m-2n)
5-7(-4q+5)
-(2h-9)-4h

my answer is$ 12

step-by-step explanation:

because 15 -2=12

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