9(2w−y)=21w−9y
First you multiply the numbers in the parenthesis by 9
subtract. 21w-18w=3w
add. -9y+9y=0
divide.
Final answer is 0.
The length is 486
Step-by-step explanation:
638 subtract 152
30% of £10 = £3
30% discount = £10 - £3 = £7
Cake costs £7
Answer:
its the digram: )
Step-by-step explanation: