Hi, any help with this question? i'm stuck on it

a = 70° [because vertically opposite angles are equal.]

c + 150° = 180° [They are linear pair]

=> c = 180° - 150°

=> c = 30°

a+b+c= 180° [Sum of all angles of a triangle=180°]

=> 70° + b + 30° = 180°

=> 100° + b = 180°

=> b = 180° - 100°

=> b = 80°

answer: $34.31

step-by-step explanation:

$11.99 x 3 = $35.97

$35.97 - 10% = $32.37

$32.37 + 6% = $34.31

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign