2. Mary wants to construct a fence around her window garden. She measured the perimeter of
the garden to be 170 inches, but when she
arrived at the hardware store she discovered the
fencing was only sold by the foot. What is the
least amount of fencing, in feet, that Mary can
buy and still be able to completely enclose her
garden.
F. 14
G. 15
H. 42
J. 84
K. 2040

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

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.