9=72 8=56 742 6=30 5=20 3=?

The wholesale price of 6-ounces plastic bottles is 6 cents. How many plastic bottles can be purchased for $92.62? (round to the nearest whole number.)

The ratio of boys to girls in a group is 7:2. If there are 70 more boys than girls, work out how many people there are in total.

Jim, Dan and David share some sweets in the ratio 5:4:5. Jim gets 65 sweets. How many did Dan get?

The cost of gasoline is $2.70 per gallon. write the unit rate as a ratio. then write an equal ratio to find the cost of 5 gallons.

To to which set of numbers does the number square root of - 16 belong

A certain disease has an incidence rate of 0.2%. If the false negative rate is 8% and the false positive rate is 4%, compute the probability that a person who tests positive actually has the disease.

How many 4-element subsets containing the letter a can be formed from the set {a, b, c, d, e, f, g}?

A safety inspector conducts air quality tests on a randomly selected group of 7 classrooms at an elementary school. Identify the population and sample in this setting.

A square has an area of 15in^2. what is the approximate side lengths of the card

In class, we used associative property to show that when 6 is a factor, then 2 and 3 are factors, because 6=2x3. Use the fact that 10=5x2 to show that 2 and 5 are factors of 70, 80, and 90.