The third one shows parallel lines cut by a transversal
Use calculator it’s just square roots
Evaluate:
First you calculate the exponent:

27 + 1 <span>⋅ 9 + 12
</span>Then you multiply and divide left to right: 1 <span>⋅ 9 = 9
27+ 9 + 12
Then add and subtract:
27 + 9 + 12 = 48
So the answer to this is 48.
Hope I helped :)
</span>
= -21 because -8-21+12-16+6+6
Multiply both sides by 10 to clear the fractions.
2[10-5(x-2)]=x+1
distribute the 2 on the left hand side
20-10(x-2)=x+1
distribute the 10
20-10x-20=x+1
cancel out the 20
-10x=x+1
collect like terms
-11x=1
divide both sides by -11 to solve for x
x=-1/11