You have a shelf that holds 25 1/2 pounds how many 1 1/4 pound books can the shelf hold

You would divide 24 1/2 by 1 1/4
49/2 divested by 5/4
Take the reciprocal of 5/4 which is 4/5 them multiply
49/2 * 4/5 = 196/10 or 19.6
This translates to the shelf can hold up to 19 books

Less than 12 lbs across the entire shelf

1.   an exact solution requires a radical solution - no decimal approximation.2. (a)4x^3 = 756x^3 = 756/4 = 189x =   cube root of 189 =   5.74   to nearest hundredth answer(b)   189 = 3*3*3*7   so we can write the cube root of 189 as 3∛7 answerchecking (a) 4*(5.74^3 =   756.48   which is very close(b)   4* ((3∛3)^3   = 4*189   = 756   - spot on! 3. i would use solution b because the original question asked for an exact solution.