Pleasee help with this question, or explain how to solve

The missing measure is 70.

Step-by-step explanation:

Because the two inside angles that arent next to each other on the suppelment add up to the outside angle, 120-50 is the missing angle. Sorry if this explaination is confusing.  

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.