What is half the sum of x and y decreased by one-third y as a algebraic expression

Step-by-step explanation:

We can translate these words into an expression by just reading them and interpreting them.

Half the sum of x and y.

We know that it's going to include , and if we're taking half of that, we multiply that by , so

We also know that one third of y will be multiplying y by , so .

Since we are decreasing by  , there's a minus sign between the terms.

So, .

Hope this helped!

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.