Given f(x) = ∫x0 t2 − 91/1 + cos2(t) dt
At what value of x does the local max of f(x) occur?

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?