A website that rents DVDs charges a one-time fee of $7 to become a member of the site. It costs $3 to rent each DVD. Diana joined the site and spent a total of $61. How many DVDs did she rent?

The blue-throated bird has a heart of about 1,260 beats per minute. Explain ow you would calculate the number of times the hummingbird's heart beats in a 24-hour day. Then find the number of beats in a 24-hour day.

The college team won 30 games last year. This year it won 25 games what was the percent decrease of games won?

What are the solutions to the quadratic equation 4 (x + 2) 2 = 36

Which interval contains a local minimum for the graphed function? O [-4,-2.5) O 1-2, - 1] O [1, 2] O [2.5, 4]

If you are receiving $57.94 in change, what is the lowest combination of bills and coins that will still give you the correct change? 5 - $10.00 bills, 1 - $5.00 bill, 2 - $1.00 bills, 3 - quarters, 1 - dime, 1 - nickel, and 4 pennies 2 - $20.

Ten students participated in a raffle to win a computer. There are two new computers being given away and two students will be chosen at random one at a time without replacement. How many possible ways are there to choose the two students?

A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the standard deviation of the contents (i. e., of the population) is 0.22 ounces. In this problem the 0.22 is Select one: a. a parameter. b.

What is the responsibility if a scientist

What is 1/8 x 3/8 and how do you do the problem?

Jackson is 54 mikes east of Lazy River Resort. Ontario is 31 mikes south of Jackson. A land developer prioress building a shortcut to directly connect Ontario and Lazy River. Show calculations