Enlarge the triangle by scale factor -2 with the centre (4,6)
Pl be quick​

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)

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

What is the lcm of 16 and 40 ? 24 and 40 ?