Please help me!! Write the equation of a line that is perpendicular to y= 7/5x + 6 and that passes through the point (2,-6)

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?