A teacher puts his students some maths exercises for homework. When she corrects them, she realizes that, Gemma, one of the students who gets the best grades, has answered badly to all the exercises. When she discusses it with Gemma, she tells him that the answers are correct and she sees that she is right. Why?

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.

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position