henry is fice times as old as his nephew. if the difference between their ages is 48 years what is henry's age?
three less than twice a number x is equal to 5 more than x. find the number????
(-2^-3x^-7)(2^5 x^6 y^9)=
calculate:: x^7y^6z^-5///// x^-4 y^8 z^-8
2(x^2 y)^0 +(3x^2)^0