30x + 30y = 450
20x + 25y = 345
answer: 3 square ft per minute
Answer:
r =.3 is wrong for 2x = -6. you divide -6/2 which = -3 so r = -3
Answer:
Step-by-step explanation:
Answer:

Step-by-step explanation:
This shape is called a rectangular prism. The formula for finding the volume of this prism is: 
All you do is plug the values into the formula.
The length is 2m
The width is 1m
the height is 5m
Volume = (2m)(1m)(5m)
Volume = 
Answer:
56
Step-by-step explanation:
Just substitute 7 for p in the expression 9p - 7: 9(7) - 7 = 56