Two numbers are in a ratio of 7:4. The sum is 220. Find the bigger number

How's coordinate geometry, Pythagoras theorem used in building construction

A pollster obtains a list of all the residential addresses in a certain town, and uses a random number generator to choose of them.

Paulo's father bought 8 pizzas and 12 bottles of juice for the class party. Each pizza coast $9 and each bottle of juice cost$2 Paulo's father paid $100-bill. How much change did he get back

What is 2 (p - 2) + 16 = 5p - 9?

Find the discriminant. 3b^2 + 6b + 3 = 0

In a number line when is the circle open and when is it closed?

Is the relation a function? { (14, 15), (5, 7), (3, 10), (11, 1), (5, 8) }

What is 3t - 8 = 8t + 12

Fred is constructing a 95% confidence interval to estimate the average length (in minutes) of movies he watches. His random sample of 15 movies averaged 114 minutes long with a standard deviation of 11 minutes.

How to check if a ratio is equivalent