The CD Recyclery sells used CDs for $10 each and buys them for $6 each. Bob paid $20 when he bought and sold the same number of CDs. How many CDs did he buy?

The number of bees that visit a plant is 100 times the number of years the plant is alive, where t represents the number of years the plant is alive. What does the expression 100t represent?

4:3 and 25:45 are equal ratios. True or false?

Maya spent 40% of her saving to pay for a bicycle that costed $85 how much money was in her savings to begin with?

What nuber ges halfway between 16 and 42

The Denver Police Department Wants to know if Hispanic residents of Denver believe that the police use racial profiling when making traffic stops. A sociologist prepares several questions about the police.

Which of the following statements cannot be proven to be true

For a certain type of injury, the equation yˆ=4.094x+6.255 models the number of minutes a patient can walk on a treadmill, where x is the number of sessions they had since their recovery began.

Shelia is going to divide a 36-inch ribbon in piece of 5 equal parts. She says each piece will be 7 inches long. What is Sheila's error?

For a quadratic function f (x) = ax2+bx+c, what is not true about the domain, the range, and the intercepts of the function

When Zeke and Jackson were running their group physics experiment, for each measurement needed they both recorded observation and then averaged the results.