4x < 8 i'm trying to figure out i keep getting x< -2

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.