Mark owns a lawn service company. He used the function f (t) = 10t + 25 to determine the cost of his services where t is the time, in hours, he spend
mowing. How much will Mark charge for working 2.5 hours? (Only enter a number
in the answer box - no symbols.)

Don’t know sorry about that

Ithink so 1.you go to your profile and your questions and you'll be able to delete them

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.