Which of the following equations have the correct notation? check all that apply. (btw, most of my questions are from apex learning because i'm in summer school)

a. ba=4
b. ab=4
c. ab (with line over) =4
d. ba (with line over) =4

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

answer: its the third option.

step-by-step explanation:

i just took the test.