If f(x) = 5x + 40, what is f(x) when x = -5?
08
7
15

Replace X in the equation with -5 and solve:

f(x) = 5x +40

= 5(-5) + 40

= -25 +40

= 15

3; 9 is 8 to -4

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