Answer:
£149.5
Step-by-step explanation:

Answer:
∠DCE is congruent to ∠CBA by the Vertical Angles Theorem and 15 over 5 equals 12 over 4 shows the corresponding sides are proportional; therefore, ΔABC ~ ΔEDC by the SSS Similarity Postulate.
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
-9=9
9+12=21