Estimate the size of a crowd at an outdoor concert venue that occupies a rectangular space with dimensions of 300 feet by 500 feet (to the nearest whole number).

Assume that 5 people occupy a square measuring 5 feet by 5 feet.

The digit in the ten's place of a two digit number is one less than the digit in the one's place. If we add this number to the number obtained by reversing its digits, the result is 55, find the number.

In a year, a study found that of the 6 billion people in the world, 4 billion have cell phones. How many people lived without access to cell phones that year?

In basketball, Anthony makes 1 out of every 4 throws he tries. What is the probability that Anthony will make his next 3 free throws? Round your answer to the nearest tenth of a percent.

The diameter of the handle of a softball bat is 1 3/4 inches. What is the length in inches of the diameters of 8 of these bat handles? A 6 in. B 834 in. C 9 3/4 in. D 14 in.

2 (x2 + 5) - 3 (x + 1) + 3

1. Tim is choosing between two cell phone plans that offer the same amount of free minutes. Cingular's plan charges $39.99 per month with additional minutes costing $0.45. Verizon's plan costs $44.99 with additional minutes at $0.40.

4,355,000 in word form

In a class, 20 people live on campus and 4 people live off-campus. If we were to draw one student's name from a hat, what is the probability that this student is living off-campus?

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

Which of the following best describes the expression? 2x + 7y