Answer:
92
Step-by-step explanation:
2c + 4d =
c = 30, so we substitute 30 for c in the expression 2c + 4d.
d = 8, so we substitute 8 for d in the expression 2c + 4d.
= 2 * 30 + 4 * 8
= 60 + 32
= 92
