Tommy earns $76 interest after five years on a principle of 400 Janie and $.82 dollars in inches after two years on a principle of $1000

The system of equations graphed below has how many solutions? y = 2x + 2

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.

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?