exam Maths Puzzle Numerical Ability

Solve to four decimal places: 3.9^(m-4)=10.21.

Thanks

Read Solution (Total 0)

exam Other Question

I would like to know how the auther came up with the answer of 6. I came up with 3. please help me factor as completely as possible
5x^3y-15x^4y^2 i know i have to find the gcf first 5*15=75 but i dont know what to do after that.