Which expression is NOT equivalent to 14a - 30 + 16a? 14a - 30 + 16a

30(a - 1)
6(5a - 5)
15(a - 2)
5(6a - 6)

The product of sin 30 degrees and sin 60 degrees is same as the product of

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?

Marco states that 7.696696669…… is a rational number because it is a repeating decimal. is he correct? justify your answer.