I don't know how to solve for the measures of each angle but I can tell what type of angles each of these are. (a) obtuse angle, (b) not sure, (c) not sure, (d) The relationship between the angles BA and BE is that together they form a right angle. And #3, I cannot helps with. Very, sorry that I was not able to answer all of your question. Hope this helps!
Since posters cost 9 dollars each and picture frames cost 15, it would be multiplication.
The expression would be 9(6)+15(6) or 9x6+15x6.
You have to multiply these numbers. 9 times 6 would be 54. 15 times 6 would be 90.
Now, we need to add these together. 54 plus 90 would be 144.
The total cost for 6 framed posters would be $144.
To give every angle a label:
First angle = 2x
Second angle = x
Third angle = x + 68
So, because the sum of the interior angles of the triangle is 180°, we can say that: 2x + x + (x + 68) = 180
2x + x + x = 4x
4x + 68 = 180
Isolating for x we get: x = (180-68)/4 x = 28
Because the first angle is twice as large and the third angle is greater than the second angle, the measure of the smallest angle is 28°.
Use y=mx+b
m = 4
x = 0
y = -1
-1 = (4)(0) + b
^^^
Multiply
We are doing this rn the answer is in the box