There are two routes lucas can take to walk to school. rout a is 2 1/8 miles and 3/8 miles longer than route b. the equation b+3/8=2 1/8 can be used to represent this situation, where b is the length of route b. how many miles will lucas walk if he takes route b? (a.1 1/2 miles) (b.1 3/4 miles) (c.2 1/4 miles) (d.2 1/2 miles)

The answer is going to be B)1 and 3/4 miles because when you subtract 2 1/8-3/8 it = 1.75 75 as a fraction is 3/4 and your whole number is one 

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.

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