If r(x)=3x-2x+2 find
r(-1)
(simplify your answer)

r(-1) = 7

Step-by-step explanation:

x = -1

3(-1)² - 2(-1) + 2 =

3(1) + 2(1) + 2 =

3 + 2 + 2 =

7

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