How do I know if a function is one-to-one?

What is the explict formula for the arithmetic sequence - 7.5,-9,-10.5,-12

A school fair ticket costs $8 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who went to the fair was 30, and the total money collected was $100.

A prize was awarded to 40 women and 894 men. a. What fraction of the prize winners were women? b. What fraction were men? a. The fraction nothing represents the prize winners that were women.

What is the distributive property of 10n+6

Your classmate kelly, claims that 16 year olds are actually the safest teenage drivers because they have the least number of accidents do you agree or disagree with kelly explain any mathematics you did

The number 248,682 rounded off to the nearest hundreds becomes A. 248,700. B. 248,680. C. 249,000. D. 250,000.

Jane ran 6 time around her neighborhood to complete a total of 1 mile. How many times will she need to run to complete 5/6 of a mile

When adding or subtracting two decimals what is the first thing you most do

Simplify each expression. Use the distributive property to remove any parentheses. - 7 (y+5)

What multiplies to - 20 and adds to 8?