I need help/ explanation. Algebra 2 15 points Stretch the graph of f(x) vertically by a
factor of 2.

I need to know how to do this.

The product of two negative rational numbers is always zero sometimes zero never zero

Oscar and julie ashton are celebrating their 15th anniversary by having a reception hall. they have budgeted $4,500 for their reception. if the reception hall charges a $90 cleanup fee plus & 36 per person, find the greatest number of people that they may invite and still stay within their budget.

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin