Consider the phrase "the number of blue markers in a drawer is 4 more than twice the number of red markers." write an expression for the total number of markers in the drawer using only the variable r, which will represent the number of red markers.
first, write an expression for the number of blue markers in the drawer.
what is the expression for the total number of markers in the drawer?
enter your answer in the box.

Combine like terms to make a simpler expression 3z+z

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how