If you are driving at a rate of 55 miles per hour, about how many feet per second are you traveling? 0.015 feet per second80.67 feet per second4840 feet per second290400 feet per second

1 mile = 5280 feet

 1 hour = 60 minutes

1 minute = 60 seconds

55/60 = 0.91666 miles per minute

5280 x 0.91666 = 4840 feet per minute

4840/60 = 80.67 feet per second

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second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.