Answer: angle 1=129 degrees
Step-by-step explanation:
180 - 99 - 30 = 51
all the angles of a triangle should add up to be 180 degrees
51+99+30=180
angle 1 is supplementary to the angle that is 51 degrees so it would be 129 degrees. 180-51=129
Combine like terms to get 2x + 6x which is 8x and 3y + 9y which is 12y so the simplified answer is 8x + 12y
Answer:
30
Step-by-step explanation:
-75 + 105= 30
(Hope this helps can I pls have brainlist (crown) ☺️)
7 times 4 =28 this is cuz there is seven days in a week and 7x4
