Erin has 3 guppies more than zebrafish and has twice as many zebra fish as goldfish. If Erin has 23 fish total, how many of each of the fish does Erin have?

How many obtuse or right angles does a hexagon have

The weather in a certain locale consists of alternating wet and dry spells. Suppose that the number of days in each rainy spell is a Poisson distribution with mean 2, and that a dry spell follows a geometric distribution with mean 7.

5x-2y=14. Covert from standard form to slope interceptecept

350/27 in simplest form

Direct Variation: If y=9 when x=3/2, find y when x=1.

To which pplace value is the following number rounded? 5.927 to 5.93

How many two digit whole numbers are increased by 18 when their digits are reversed?

How to solve? -21w (w-26)

Probability that Garrick is certified = 25 Probability that Molly has not had an accident = 71.87 Probability that Ryan is both certified and has never had an accident =

Joyce lost 26 lbs on her diet. During vacation she gained 4 lbs. How much was her overall loss?