I’m very confused on all of this can someone please explain step by step in one of the questions??

A. -29

Step-by-step explanation:

g(x) is basically Y in a regular y=mx+b

g(10) bascially means substituting x with 10. So solve for x when x equals 10. g(10)=-3(10)+1 so g(10)=-29

4 + 5 7/9= 9 7/9

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