3/4+7/10-1/8(-1/2) simplest form (NEEDED NOW and thank you)

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.

Find the circumference of a pizza with a diameter of 10 inches round to the nearest tenth

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.