McDonald's has sold more than a billion hamburgers. If it were possible to eat a hamburger every minute of every day (day and night )without stopping, how many years would it take to eat a billion hamburgers? Express your answers in both scientific notation and decimal form

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

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.

its adding 5.5 each time

step-by-step explanation:

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3