Which of the following sets are not well-defined?

set of all counting number

set of all even integers

set of integers greater than 6 but less than 10

set of four best actors in the world

Angela wants to know how many families in her neighborhood plan to attend the parade. She puts all 120 of the neighborhood addresses in a hat and draws a random sample of 30 addresses. She then asks those families if they plan to attend the parade.

Factoring quadratics x² + 12x + 32

Solve 9 2/15 - 7 2/5

What is 5.42 times 305 estimate to?

Devaughn is 5 years older than Sydney. The sum of their age is 87. What is Sydney's age?

4x-3y=17 Y=3x-4 Solve by subsition

Is 3 a solution to the equation 5 + (-8) n=29

What is 12/15 written as a percent and decimal

The temperature dropped 17 Fahrenheit in 6 hours. The final temperature was - 3 Fahrenheit. Use integer addition to find the starting temperature.

What would $25 deposited 56 yrs ago be worth today?