Answer:
tables and graphs
Step-by-step explanation:
10 y plus 9 y minus 6 y plus 6 y
=> 10y + 9y - 6y + 6y
= 10y + 9y - 0 = 19y
Answer:
D last one.
Step-by-step explanation:
4x4=16 not 8
Answer:
x = 20°
Step-by-step explanation:
We know that the big angle is 90°, due to the marking on the diagram. So, we make all the angles add up to 90°. Now, we can make the x stay on one side and solve for the value.