Question

I need helpplease help me!!

Answer 1

the answer is 8. just use the calculator to help u

Answer 2

3.4(2^2)+4/2-(5.3+2.3)

=(3.4) (4) + 4/2 -(5.3+2.3)

=13.6+2-(5.3+2.3)

= 15.6-(5.3+2.3)

= 15.6-7.6

= 8

so b is the right answer

I hope that's help !