At a concession stand, seven hot dogs and two hamburgers cost $16.75, two hot dogs and seven hamburgers cost $19.25. Find the cost of one hot dog and the cost of one hamburger. (separate your answers using commas)

1. what is the measure of ∠abc? what is the measure of ∠abd?

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).