Iwill mark
4. what is the value of x?
a. 24***
b. 9
c. 21
d. 14
5. what is the measure of angle 1?
a. 45 degrees
b. 60 degrees
c. 120 degrees***
d. 125 degrees
the ones that are marked *** are my answer. correct me if i am wrong

∠1 = 120°

Step-by-step explanation:

Since the 2 lines are parallel

Angles 5x + 15 and 3x - 3 are same- side interior angles and are supplementary, thus

5x + 15 + 3x - 3 = 180, that is

8x + 12 = 180 ( subtract 12 from both sides )

8x = 168 ( divide both sides by 8 )

x = 21

Hence

∠1 = 5x + 15 ( corresponding angles )

    = (5 × 21) + 15 = 105 + 15 = 120°

answer: give more info

step-by-step explanation:

b. b < 1 might be the correct answer