Algebraic expression.

23 less than a number

plz help

What is (28 + 7 + 6 + 3) x 1/2 show your work

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.