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16 lb? 240 oz

At the moment a certain medicine is injected, its concentration in the bloodstream is 120 milligrams per liter. From that moment forward, the medicine's concentration drops by %30, percent each hour.

You are given a piece of cardboard and asked to cut out a square of area (169y2 + 260y + 100) cm2. The side length of the square is ax + b cm, where a and b are whole numbers. Find an expression for the perimeter of the square.

Mystery numbers A=B+5. B=C+7. C=the difference between 13 and 9. D=A-B

Jordan will hike the trail shown at a rate of 4mi/h. Write a linear equation to represent the distance Jordan still has to walk after x hours. What does the y-intercept of the equation represents?

Suppose c and d vary inversely, and d = 2 when c = 17. a. write an equation that models the variation? b. find d when c = 68

Identify the solution of the inequality using the given replacement set c<-2; {-4.2,-3.6,-2.5,-2,0,4,4.1}

10,483 people attended a rock festival. If there were 811 more boys than girls, and 2,481 fewer adults over 50 years of age than there were girls, how many of each group attended the festival?

When Rosa tripped and fell into a muddy puddle at lunch (she was so embarrassed!), she knew exactly what would happen: within ten minutes, the two girls who saw her fall would each tell four people what they had seen.

What is the Vertex y=2x^2+6

What is 128 divided by 8