In a pet store the number of dogs is 12 more than three times the number of cats. If the pet store has 21 dogs how many cats does it have

The recommended time to take a math test is 23 minutes. you complete it in 18 minutes. what is the percent change between your time and the recommended time?

2.62kg=k how many grams is it

Solve for y: - (4y+20) + 19=-y+17

How can the effect of an outlier be overcome in an experiment that examines a random sample of a population? A) Discard 50% of the data. B) Examine a larger random sample of the population. C) Examine a smaller random sample of the population.

Brian has a piece of yarn that is 48 inches long. How many feet long is his piece of yarn?

On a recent Saturday, a total of 1086 people visited a local library. Of these people, 269 were under age 10, 466 were aged 10-18, 185 were aged 19-30, and the rest were more than 30 years old. One person is sampled at random.

A company sells desks for $155 each. To produce a batch of x desks, there is a cost of $83 per desk and a fixed or setup cost of $9,300 for the entire batch. Determine a function that gives the profit in terms of the number of desks produced.

Find the perimeter of a triangle xyz (0,2) (4,-1) (-2,-1)

Consider two circles, a smaller one and a larger one. If the larger one has a radius that is 15 feet larger than that of the smaller circle and the ratio of the circumferences is 4 colon 1, what are the radii of the two circles?

A student estimated a mass for by 325g, but upon carefully mesuring it, found the actual mass to be 342g. What is the percent error?