7is greater than x and 3 is less than or equal to x

The answer is 7>x≤3 hope this helps:)

X equals to 5

Step-by-step explanation:Since 7 is greater than 5 that means that 3 is less to 5

i think it would be 42cm

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.