Hey there!
PART A
c + 2d
= 10 + 2(-2)
= 10 - 4
= 6
PART B
5c^2 - cd
= 5(10)^2 - 10(-2)
= 5(100) - (-20)
= 500 - (-20)
= 500 + 20
= 520
Therefore, your answer is:
PART A.: 6
PART B.: 520
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
