What is the best unit of measurement to measure the weight of a building?

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)

Jim makes $10.35 per hour. write an equation that jim can use to calculate his pay.

What is this inequality notation? t is less then or equal to 2