F(x) = 3x + 1 ; If f(x) = 16 then what does x = ?

A. 4
B. 5
C. 6
D. 7

Calculate the density of benzene if 300ml of it weighs 263g. a. 0.88 g/ml b. 1.14 g/ml c. 78,900 g/ml d. 37 g/ml

If you could answer these your a life saver

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21