4/-7 + -6/5

In simplest form

When you have 25 numbers, and jake picks 3 random numbers and puts them back, what is the chance bob has of picking those 3 numbers when he picks 6 random numbers (without putting them back)? explain.

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?