Four times the sum of a number and 15 is at least 120.let x represent the number. find all possible values for x

What value of x is in the solution set of –5x – 15 > 10 + 20x?

Which transformations could have occurred to map △abc to △a"b"c"? a rotation and a reflection a translation and a dilation a reflection and a dilation a dilation and a rotation

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?