Amtrak reduced its roundtrip ticket from boston to washington by $49. the sale price was $140. what was the original price?

Which expression is equivalent to the expression below? (6c^2 + 3c) / (-4c + 2) / (2c + 1) / (4c - 1)a. 3c(2c-1) / (2c + 1)b. -3c(2c-1)^2 / (2c + 1)^2c. 3cd. -3c(just took the test its d. -3c)

Answer this question only if you know the 30 points and

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base