Mrs. Hall has seen 15 girls and 10 boys walk by her classroom between will periods. What is the probability that the next person she sees walk by be a boy?

60% mark up of 95 cents

One car model cost $12,000 and cost an average of $0.10 per mile to maintain. Another car model cost $14,000 and cost an average of $0.08 per mile to maintain.

Adele is paid a weekly salary of $685. She is paid an additional $23.50 for every hour of overtime she works. This week her total pay, including regular salary and overtime, was $849.50. How many hours of overtime did Adele work this week?

Slope:3, y-intercept:5

What's two numbers that falls between 1/2 and 5/8

Is 15/7 an irrational number

Look at the following numbers -6 0 6 12 Which pair of numbers has a sum of 0?

Find the area of the shaded regions below. Give your answer as a completely simplified exact value in terms of π (no approximations). 6c

Express the following as a single discount rate. 25% and 16% 30%, 20%, and 5% 60%, 10%, and 5% 40%, 20%, 121⁄2%, and 4% 25%, 20%, and 3% 331⁄3%, 25%, and 5%

What is the area of a circular cardboard piece needed for the base of a model of a volcano that is 20 centimeters tall and has a volume of 960 cubic centimeters? Which equation represents this real-world problem?