1. If the variables x and y are proportional and y = 4 when x = 20 then which of the following equations relates all values of x and y? (1) y = x+16 (3) y = 5x (2)y=-* (4) y=x-16​

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

One of the complementary angles is 4 degrees mor than the other. find the angles (recall that complementary angles are angles whose sum is 90 degrees.) which of the following can not be used to solve the problem if x represents one of the angles? a. 2x-4=90 b. 2x+4=90 c. x+4=90

4. bob solved the inequality problem below incorrectly. explain his error and redo the problem showing the correct answer. −2x + 5 < 17 −2x + 5-5 < 17-5 -2x/-2 < 12/-2 x < -6