There are 25 people in a classroom. Each person shakes each other person's hand once

and only once. How many handshakes were there altogether?

An above-ground circular swimming pool is 18 feet in diameter. How does the pool's diameter d compare to its circumference C? A: d=1/2C B: d=2C C: d=3C D: d=1/3C

What is the zero of the function below? f (1) = 3v1 + 3 - 6

Find the area of a triangle if the base (b) is 12 inches and the height (h) is 18 in.

The equation below represents Function A and the graph represents Function B: Function A f (x) = x - 9 Function B graph of line going through ordered pairs negative 1, negative 3 and 2, 3 Which equation best compares the slopes of the two functions

Zero is a rational number. true.

In a class of 160 students, 90 are taking math, 78 are taking science, and 62 are taking both math and science. What is the probability of randomly choosing a student who is not taking science? 69% 44% 51% 49%

Does a parallelogram have to have an acute angle

The owner of an audio store recived a shipment of portable stereos at a cost of $102.30 each. If he sells the stereos for 181.99 each, what is the percent of markup? Round to the nearest whole percent

A pair of boots has an original price of $95. They are on sale for 35 percent off. What number can you multiply $95 by to equal the discounted price of $61.75?

A measurement of 8,452 meters has a lower margin of error than a measurement of 84.52 meters. True or False?