A, X=6(x-2) as his age take away 2 (his age two years ago) then multiplied by 6 will equal his current age.
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Answer: 
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Step-by-step explanation:
- Cross-multiply.
- Divide both sides by 9.
Answer:
2nd option
Step-by-step explanation:
given an exponential function in the form y = a
to find a and b use the coordinate points it passes through
using (0, 4 ) , then
4 = a
[
= 1 ] , that is
a = 4 , so
y = 4
using (2, 100 )
100 = 4b² ( divide both sides by 4 )
25 = b² ( take the square root of both sides )
= b , that is
b = 5
then exponential function is
y = 4 . 
Answer: C
Step-by-step explanation:
divide 342 by 7 and round to the nearest whole number
I belive x=2.25 because u have to add 2x and 7x and that equals 9x then u devide 9 and 4 and that will give u 2.5