-39, -37, -35, -33, -31, -29. Odd numbers are the same just backwards ;)
Answer: c.50 is the answer
It is the first option. DF = DE. It is referring to the lengths of each line, DE and DF look like they are the same. It is not a scalene triangle it is a right triangle. EF is way too long to be equal to DE or DF
Step:
58/4x54+7x21 =
783+7x21 =
783+147 =
930
