30x + 30y = 450
20x + 25y = 345
answer: 3 square ft per minute
Answer:
The answer is $360.
Step-by-step explanation: To calculate the cost of the flowers: 8 x 20 x 1.50 = 240
To calculate the cost of the candles: 20 x 6 = 120
Add the totals together, and there you go.
It takes 3 days to complete one hour of reading. So 3 x 20 = 60 days total.
Answer:
yes this is true.
Supplementary angles always add up to 180°.
