An unbalanced scale with 9 blocks on the left side of the scale and 5 blocks on the right side of the scale

for the image above, which action below allows the scale to be balanced?

add 5 blocks to the left side.
add 4 blocks to the right side.
take away 5 blocks from the left side.
take away 3 blocks from the right side.

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total