Step-by-step explanation: ummnmm i think 18
Answer:
5 is the mean
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
the inside of quadrilateral is always 360°.So add 75°,90° and 75° and then subyaract from360°.
x+75°+75°+90°=360
×+240°=360°
x=360°-240°
x=120°
Answer:
or 
Step-by-step explanation:
Step 1: Factor left side of equation: 
Step 2: Set factors equal to 0:
or 
Get your answer:
or 