Y=6(1.02)^x growth or decay?

What expression is equivalent to log3(x+4)

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?