A trench needs to be at least 63 feet below ground level. This means it needs to be more than 3 1/2 times its current depth. This depth is represented by the inequality 3 1/2d<−63, where d is the current depth of the trench. Select from the drop-down to correctly interpret the solution of this inequality.

The current depth of the trench is

At most 18
Deeper than 18
less than 18
feet below ground level.

answer: true

step-by-step explanation:

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

step-by-step explanation:

mean or average is 40.6

thats not a system of equations, that is a solution