What is (10/8)X2+8X9X3?

Simplify the expression.

Exact Form:

437 /2

Decimal Form:

218.5

Mixed Number Form:

218  and 1 /2

Step-by-step explanation:

Have a nice day! I hope this helps!

the answer is ! ?

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.