What is the solution to this equation?

5(x - 4) = 3x + 4

a.
x = 12

b.
x = 3

c.
x = -2

d.
x = -8

Factor the expression using gcf 9b+45

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?