Which of the ordered pairs in the form(x, y) is a solution of this equation? 3x - y/4 = 11 (3, -8), (4, 4)
A. The first is a solution, but the second is not.
B. Both are solutions.
C. The first is not a solution, but the second is.
D. Neither is a solution.

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.

The tile along the edge of a triangular community pool needs to be replaced? ?

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.