Colin's bank account balance is d dollars. If he deposits a check for 50$. Write an expression to represent his new balance.

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)

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Can someone pls ! pls answer all. no explanation needed..