A pattern exists among the units digits of the powers of 7, as shown below. What is the units digit of 750 ?
70 = 1
71 = 7
72 = 49
73 = 343
74 = 2,401
75 = 16,807
76 = 117,649
77 = 823,543
78 = 5,764.801
(Note: The units digit of 2,401 is 1)

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844

both equations and proportions are better.

16 is the absolute value

step-by-step explanation:

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.