4:5 because a quadrilateral has 4 sides and a pentagon has 5 sides
Answer:
90
Step-by-step explanation: 9 + 6 = 15
So, then you would multiply 15 x 6 which equals 90
Bottom right one is the range
Answer:

Step-by-step explanation:
50 can be also written as
and the reciprocal means the inverse or to flip the fraction.
Answer:
this is not a real triangle
Step-by-step explanation: