Answer:
the last three answers is what i think
Step-by-step explanation:
21 is the right answer.
180-138=42°
and since it is given in the question that the triangle is isoceles ,so half of 42 is 21°
y+4= -3(x+8)
To decrease this amount by 15% we must first find out what is 15% percent.
We can do that by multiplying the decimal of 15% by 120
15% = 0.15
0.15 x 120 = 18
So 18 is 15% of 120.
Wait! that's not the answer. We are asked to decrease by 15%
So 120 - 18 = 102
Your answer is £102
I hope it helped you. You can have a look
