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

C. 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

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

Hundred and tens tables to make 430 in five different ways

The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation

Afootball quarterback has two more chances to throw a touchdown before his team is forced to punt the ball. he misses the receiver on the first throw 25% of the time. when his first throw is incomplete, he misses the receiver on the second throw 15% of the time. what is the probability of not throwing the ball to a receiver on either throw?