Erika has 6 red pens, 9 green pens, and 10 black pens in her pencil case. Erika randomly picks one pen from the case, writes down the color, and puts the pen back. If she repeats the process 100 times, which is the best estimate of the number of times she should expect to draw either a red or black pen?
A. 76%
B. 24%
C. 64%
D. 60%

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons