10. Riley has (7x + 4) red marbles and (4x + 3) blue marbles. Isabella has 3x less marbles than Riley How many marbles does Isabella have?

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Using the figure below, select the two pairs of alternate interior angles. a: point 1 and point 4 b : point 2 and point 3 c: point 6 and point 6d: point 5 and point 7