Mary earns $5 per hour as a waitress. Last week she took home her regular earnings of $5 per hour plus $186 in tips for a total of $291. How many hours did Mary work last week?

A researcher wants to run a 2 x 3 mixed factorial design. The first factor is the within-subjects. The second factor is the between-subjects. If the researcher wants 20 observations per cell, how many participants will he need in total?

Three students are chosen at random. Find the probability that all three were born on Wednesday a. 3/365 b. 3/7 c. 1/21 d. 1/343

The correlation between height and weight for a certain breed of plant is found to be. 75. what percentage of the variability in plant weight is not explained by height? a. 1-.75 =.25 or 25% b. (.75) ^2 =.5625 or 56.25% c. 1 - (.75) ^2 =.4375 or 43.

Which graph represent y = ^3 sqrt x-5

Simplify The Expression 3 (a + 6) + 4a 6x + 4y + 6x 9 (5x)

Which direction does the graph of f (x) = 15x + 11 - x2 open? Up Right Down Left

The sum of the measures of angle A and angle B is 180°. Which term describes the relationship between angles A and B? adjacent angles supplementary angles complementary angles vertical angles

A toy store's percent of markup is 45%. a model train costs the store $50. find the markup. a. $72.50 b. $22.50 c. $27.50 d. $111.11

A herd of 49 horses has 19 white and some black horses. What is the ratio of black horses to all horses?

At most restaurants, the more food you order, the more money you have to pay. This is true whether you go to an overpriced "gourmet" restaurant where the plates are tiny but very expensive, or to a cafeteria where the portions are huge and the