Can someone help me please ASAP (Radical expressions)

A. I, II and III

Step-by-step explanation:

A

Step-by-step explanation:

Using the rule of radicals

=

Given

= → I ( 80 ÷ 5 = 16, thus

= → II ( and = 4 ), thus

= 4 → III

77

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.