1 ) a 1 3. If a = 5-2V6, then find the value of: (i) Vã - (ii) a2 + Va 4. Find the value of a and b if: 75-1 V7+1 (i) = a + b V7 V7+1 a2 ​

$15 each

step-by-step explanation:

$45/3 children= $15 each

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.

idk

step-by-step explanation:

payback