Answer:
1. x + 4 = 9
Hint: the word 'sum' generally refers to addition.
2. 10<em>a</em> = 70
3. = 15
4. - 4 = 4
£9.50
Step-by-step explanation:
× 100 = 10 × 20 = 10 = = 2x = 19
x = 9.5
12 sides
I need a picture