William recorded data to determine the relationship between the time usage, x, and the percentage of charge left on his mobile phone, y. he graphed the data and drew the line of best fit. the equation of the line of best fit is y = -10x + 100. about how many hours will it take for the phone lose its charge completely?
a.
about 5 hours
b.
about 10 hours
c.
about 20 hours
d.
about 22 hours
e.
about 24 hours

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Side xy of triangle xyz is extended to point w, creating a linear pair with ∠wyz and ∠xyz. measure of an exterior angle what is the value of x? 64 80 100 180