Charlotte is going to drive from her house to City A without stopping. An equation at determines Charlotte's distance from City At hours after leaving her house is
= -30t + 300. What is the y-intercept of the equation and what is its
terpretation in the context of the problem?
The y-intercept of the function is
which represents

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.