The question can't be solved because we can't have negative sign under square root
The anwser is A
Step by step
The markup price is $9.24. - $15.40 x 60% = $9.24
I rounded it to 150.
You could round 15.217 down to 15 and 9.54 up to 10 and then multiply 15 x 10 = 150. But you could also multiply 15.217 x 9.54 to get 145.17018 and round that up to 150 because any number that ends with 5 or higher rounds up.
Just substitute 10 for x in <span>g(x)=-3x+1: g(10) = -3(10) + 1 = -29 (answer)</span>