All but the first simplify to something rational.
I do not know my friend . Answer for this
Answer:
1134
Step-by-step explanation:
I'll assume you're supposed to compute the line integral of
over the given path
. By the fundamental theorem of calculus,

so evaluating the integral is as simple as evaluting
at the endpoints of
. But first we need to determine
given its gradient.
We have

Differentiating with respect to
gives

and we end up with

for some constant
. Then the value of the line integral is
.
If you use a calculator its easy
16.72 - 1.24 = 15.48
15.48 divided by 12 is 1.29
for sales tax 1.24 divided by 12 is .10
so for each one She spent $1.39