Which of the following represents a proportional function? A. the amount of money on a gift card, if the original amount is $200 and $50 is spent once a week for 4 weeks

B. the savings in a bank account, if $100 is initially deposited and $25 is deposited each week afterwards

C. the amount of money charged for a hotel room, if the cost is $86 per day

D. the amount of money that is charged for a cleaning service, if the cost is $25 per visit, plus $15 for each hour of work

I need this ASP please help!

Demonstrate the proof of your new polynomial identity through an algebraic proof and a numerical proof in an engaging way! make it so the whole world wants to purchase your polynomial identity and can't imagine living without it! you must: label and display your new polynomial identity prove that it is true through an algebraic proof, identifying each step demonstrate that your polynomial identity works on numerical relationships create your own using the columns below. see what happens when different binomials or trinomials are combined. square one factor from column a and add it to one factor from column b to develop your own identity. column a column b (x − y) (x2 + 2xy + y2) (x + y) (x2 − 2xy + y2) (y + x) (ax + b) (y − x) (cy + d)

What is (28 + 7 + 6 + 3) x 1/2 show your work

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9