Answer:
45
Step-by-step explanation:
6^2 + 3√9
=36 + (3 x 3)
=36 + 9
= 45
For first one
Y=6x+21 can’t be changed
X=y/6-7/2
for the second
X=-12+3y
Y=4+x/3
Х - 15 = 32
х = 32 + 15
x = 47 (answer)
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47 - 15 = 32
32 = 32
х - 7.2 = 23,1
х = 23,1 + 7.2
х = 30,3 (answer)
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30,3 - 7,2 = 23,1
23,1 = 23,1
There are 360 degrees in a circle
10x+5+140+45+2+11x=360
21x+192=360
21=168
X=8
Eb would be the same as the central angle
80+5=85
