If 6 spiders can spin 6 webs in 6 minutes how long will it take 100 spiders to spin 200 webs

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

What is the circumference of a circle with an area of 50.24 cm²?